2 files changed, 579 insertions, 160 deletions

diff --git a/Blog/Components/Pages/QRCodeScan.razor.js b/Blog/Components/Pages/QRCodeScan.razor.js
index bb80f37..2af9cee 100644
--- a/Blog/Components/Pages/QRCodeScan.razor.js
+++ b/Blog/Components/Pages/QRCodeScan.razor.js
@@ -10,7 +10,7 @@ function arraysEqual(a, b) {
     if (a == null || b == null) return false;
     if (a.length !== b.length) return false;
 
-    for (var i = 0; i < a.length; ++i) {
+    for (let i = 0; i < a.length; ++i) {
         if (a[i] !== b[i]) return false;
     }
     return true;
@@ -46,7 +46,7 @@ export function onLoad() {
 
         const initBarcodescan = (stream) => {
             writeInfo("Starting scanner...");
-            var lastbarcodes = [];
+            let lastbarcodes = [];
             setInterval(() => {
                 barcodeDetector
                     .detect(stream)
@@ -70,7 +70,7 @@ export function onLoad() {
             }, 1000);
         };
 
-        var video = getById("video");
+        const video = getById("video");
         video.setAttribute("playsinline", "");
         video.setAttribute("autoplay", "");
         video.setAttribute("muted", "");
@@ -78,8 +78,8 @@ export function onLoad() {
         // video.style.height = "100%";
 
         /* Setting up the constraint */
-        var facingMode = "environment"; // Can be 'user' or 'environment' to access back or front camera (NEAT!)
-        var constraints = {
+        const facingMode = "environment"; // Can be 'user' or 'environment' to access back or front camera (NEAT!)
+        const constraints = {
             audio: false,
             video: {
                 facingMode: facingMode,
diff --git a/Blog/wwwroot/qrcode.js b/Blog/wwwroot/qrcode.js
index bad8b20..65ff165 100644
--- a/Blog/wwwroot/qrcode.js
+++ b/Blog/wwwroot/qrcode.js
@@ -8,7 +8,7 @@
  * @see <a href="http://www.d-project.com/" target="_blank">http://www.d-project.com/</a>
  * @see <a href="http://jeromeetienne.github.com/jquery-qrcode/" target="_blank">http://jeromeetienne.github.com/jquery-qrcode/</a>
  */
-var QRCode;
+let QRCode;
 
 (function () {
     //---------------------------------------------------------------------
@@ -32,9 +32,10 @@ var QRCode;
         this.parsedData = [];
 
         // Added to support UTF-8 Characters
-        for (var i = 0, l = this.data.length; i < l; i++) {
-            var byteArray = [];
-            var code = this.data.charCodeAt(i);
+        const l = this.data.length;
+        for (let i = 0; i < l; i++) {
+            const byteArray = [];
+            const code = this.data.charCodeAt(i);
 
             if (code > 0x10000) {
                 byteArray[0] = 0xF0 | ((code & 0x1C0000) >>> 18);
@@ -57,7 +58,7 @@ var QRCode;
 
         this.parsedData = Array.prototype.concat.apply([], this.parsedData);
 
-        if (this.parsedData.length != this.data.length) {
+        if (this.parsedData.length !== this.data.length) {
             this.parsedData.unshift(191);
             this.parsedData.unshift(187);
             this.parsedData.unshift(239);
@@ -65,11 +66,12 @@ var QRCode;
     }
 
     QR8bitByte.prototype = {
-        getLength: function (buffer) {
+        getLength: function (_) {
             return this.parsedData.length;
         },
         write: function (buffer) {
-            for (var i = 0, l = this.parsedData.length; i < l; i++) {
+            const l = this.parsedData.length;
+            for (let i = 0; i < l; i++) {
                 buffer.put(this.parsedData[i], 8);
             }
         }
@@ -85,60 +87,175 @@ var QRCode;
     }
 
     QRCodeModel.prototype = {
-        addData: function (data) { var newData = new QR8bitByte(data); this.dataList.push(newData); this.dataCache = null; }, isDark: function (row, col) {
-            if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) { throw new Error(row + "," + col); }
+        addData: function (data) {
+            const newData = new QR8bitByte(data);
+            this.dataList.push(newData);
+            this.dataCache = null;
+        }, isDark: function (row, col) {
+            if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) {
+                throw new Error(row + "," + col);
+            }
             return this.modules[row][col];
-        }, getModuleCount: function () { return this.moduleCount; }, make: function () { this.makeImpl(false, this.getBestMaskPattern()); }, makeImpl: function (test, maskPattern) {
-            this.moduleCount = this.typeNumber * 4 + 17; this.modules = new Array(this.moduleCount); for (var row = 0; row < this.moduleCount; row++) { this.modules[row] = new Array(this.moduleCount); for (var col = 0; col < this.moduleCount; col++) { this.modules[row][col] = null; } }
-            this.setupPositionProbePattern(0, 0); this.setupPositionProbePattern(this.moduleCount - 7, 0); this.setupPositionProbePattern(0, this.moduleCount - 7); this.setupPositionAdjustPattern(); this.setupTimingPattern(); this.setupTypeInfo(test, maskPattern); if (this.typeNumber >= 7) { this.setupTypeNumber(test); }
-            if (this.dataCache == null) { this.dataCache = QRCodeModel.createData(this.typeNumber, this.errorCorrectLevel, this.dataList); }
+        }, getModuleCount: function () {
+            return this.moduleCount;
+        }, make: function () {
+            this.makeImpl(false, this.getBestMaskPattern());
+        }, makeImpl: function (test, maskPattern) {
+            this.moduleCount = this.typeNumber * 4 + 17;
+            this.modules = new Array(this.moduleCount);
+            for (let row = 0; row < this.moduleCount; row++) {
+                this.modules[row] = new Array(this.moduleCount);
+                for (let col = 0; col < this.moduleCount; col++) {
+                    this.modules[row][col] = null;
+                }
+            }
+            this.setupPositionProbePattern(0, 0);
+            this.setupPositionProbePattern(this.moduleCount - 7, 0);
+            this.setupPositionProbePattern(0, this.moduleCount - 7);
+            this.setupPositionAdjustPattern();
+            this.setupTimingPattern();
+            this.setupTypeInfo(test, maskPattern);
+            if (this.typeNumber >= 7) {
+                this.setupTypeNumber(test);
+            }
+            if (this.dataCache == null) {
+                this.dataCache = QRCodeModel.createData(this.typeNumber, this.errorCorrectLevel, this.dataList);
+            }
             this.mapData(this.dataCache, maskPattern);
-        }, setupPositionProbePattern: function (row, col) { for (var r = -1; r <= 7; r++) { if (row + r <= -1 || this.moduleCount <= row + r) continue; for (var c = -1; c <= 7; c++) { if (col + c <= -1 || this.moduleCount <= col + c) continue; if ((0 <= r && r <= 6 && (c == 0 || c == 6)) || (0 <= c && c <= 6 && (r == 0 || r == 6)) || (2 <= r && r <= 4 && 2 <= c && c <= 4)) { this.modules[row + r][col + c] = true; } else { this.modules[row + r][col + c] = false; } } } }, getBestMaskPattern: function () {
-            var minLostPoint = 0; var pattern = 0; for (var i = 0; i < 8; i++) { this.makeImpl(true, i); var lostPoint = QRUtil.getLostPoint(this); if (i == 0 || minLostPoint > lostPoint) { minLostPoint = lostPoint; pattern = i; } }
+        }, setupPositionProbePattern: function (row, col) {
+            for (let r = -1; r <= 7; r++) {
+                if (row + r <= -1 || this.moduleCount <= row + r) continue;
+                for (let c = -1; c <= 7; c++) {
+                    if (col + c <= -1 || this.moduleCount <= col + c) continue;
+                    this.modules[row + r][col + c] = (0 <= r && r <= 6 && (c === 0 || c === 6)) || (0 <= c && c <= 6 && (r === 0 || r === 6)) || (2 <= r && r <= 4 && 2 <= c && c <= 4);
+                }
+            }
+        }, getBestMaskPattern: function () {
+            let minLostPoint = 0;
+            let pattern = 0;
+            for (let i = 0; i < 8; i++) {
+                this.makeImpl(true, i);
+                const lostPoint = QRUtil.getLostPoint(this);
+                if (i === 0 || minLostPoint > lostPoint) {
+                    minLostPoint = lostPoint;
+                    pattern = i;
+                }
+            }
             return pattern;
-        }, createMovieClip: function (target_mc, instance_name, depth) {
-            var qr_mc = target_mc.createEmptyMovieClip(instance_name, depth); var cs = 1; this.make(); for (var row = 0; row < this.modules.length; row++) { var y = row * cs; for (var col = 0; col < this.modules[row].length; col++) { var x = col * cs; var dark = this.modules[row][col]; if (dark) { qr_mc.beginFill(0, 100); qr_mc.moveTo(x, y); qr_mc.lineTo(x + cs, y); qr_mc.lineTo(x + cs, y + cs); qr_mc.lineTo(x, y + cs); qr_mc.endFill(); } } }
-            return qr_mc;
         }, setupTimingPattern: function () {
-            for (var r = 8; r < this.moduleCount - 8; r++) {
-                if (this.modules[r][6] != null) { continue; }
-                this.modules[r][6] = (r % 2 == 0);
+            for (let r = 8; r < this.moduleCount - 8; r++) {
+                if (this.modules[r][6] != null) {
+                    continue;
+                }
+                this.modules[r][6] = (r % 2 === 0);
             }
-            for (var c = 8; c < this.moduleCount - 8; c++) {
-                if (this.modules[6][c] != null) { continue; }
-                this.modules[6][c] = (c % 2 == 0);
+            for (let c = 8; c < this.moduleCount - 8; c++) {
+                if (this.modules[6][c] != null) {
+                    continue;
+                }
+                this.modules[6][c] = (c % 2 === 0);
             }
         }, setupPositionAdjustPattern: function () {
-            var pos = QRUtil.getPatternPosition(this.typeNumber); for (var i = 0; i < pos.length; i++) {
-                for (var j = 0; j < pos.length; j++) {
-                    var row = pos[i]; var col = pos[j]; if (this.modules[row][col] != null) { continue; }
-                    for (var r = -2; r <= 2; r++) { for (var c = -2; c <= 2; c++) { if (r == -2 || r == 2 || c == -2 || c == 2 || (r == 0 && c == 0)) { this.modules[row + r][col + c] = true; } else { this.modules[row + r][col + c] = false; } } }
+            const pos = QRUtil.getPatternPosition(this.typeNumber);
+            for (let i = 0; i < pos.length; i++) {
+                for (let j = 0; j < pos.length; j++) {
+                    const row = pos[i];
+                    const col = pos[j];
+                    if (this.modules[row][col] != null) {
+                        continue;
+                    }
+                    for (let r = -2; r <= 2; r++) {
+                        for (let c = -2; c <= 2; c++) {
+                            this.modules[row + r][col + c] = r === -2 || r === 2 || c === -2 || c === 2 || (r === 0 && c === 0);
+                        }
+                    }
                 }
             }
         }, setupTypeNumber: function (test) {
-            var bits = QRUtil.getBCHTypeNumber(this.typeNumber); for (var i = 0; i < 18; i++) { var mod = (!test && ((bits >> i) & 1) == 1); this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod; }
-            for (var i = 0; i < 18; i++) { var mod = (!test && ((bits >> i) & 1) == 1); this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod; }
+            const bits = QRUtil.getBCHTypeNumber(this.typeNumber);
+            for (var i = 0; i < 18; i++) {
+                var mod = (!test && ((bits >> i) & 1) === 1);
+                this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod;
+            }
+            for (var i = 0; i < 18; i++) {
+                var mod = (!test && ((bits >> i) & 1) === 1);
+                this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod;
+            }
         }, setupTypeInfo: function (test, maskPattern) {
-            var data = (this.errorCorrectLevel << 3) | maskPattern; var bits = QRUtil.getBCHTypeInfo(data); for (var i = 0; i < 15; i++) { var mod = (!test && ((bits >> i) & 1) == 1); if (i < 6) { this.modules[i][8] = mod; } else if (i < 8) { this.modules[i + 1][8] = mod; } else { this.modules[this.moduleCount - 15 + i][8] = mod; } }
-            for (var i = 0; i < 15; i++) { var mod = (!test && ((bits >> i) & 1) == 1); if (i < 8) { this.modules[8][this.moduleCount - i - 1] = mod; } else if (i < 9) { this.modules[8][15 - i - 1 + 1] = mod; } else { this.modules[8][15 - i - 1] = mod; } }
+            const data = (this.errorCorrectLevel << 3) | maskPattern;
+            const bits = QRUtil.getBCHTypeInfo(data);
+            for (var i = 0; i < 15; i++) {
+                var mod = (!test && ((bits >> i) & 1) === 1);
+                if (i < 6) {
+                    this.modules[i][8] = mod;
+                } else if (i < 8) {
+                    this.modules[i + 1][8] = mod;
+                } else {
+                    this.modules[this.moduleCount - 15 + i][8] = mod;
+                }
+            }
+            for (var i = 0; i < 15; i++) {
+                var mod = (!test && ((bits >> i) & 1) === 1);
+                if (i < 8) {
+                    this.modules[8][this.moduleCount - i - 1] = mod;
+                } else if (i < 9) {
+                    this.modules[8][15 - i - 1 + 1] = mod;
+                } else {
+                    this.modules[8][15 - i - 1] = mod;
+                }
+            }
             this.modules[this.moduleCount - 8][8] = (!test);
         }, mapData: function (data, maskPattern) {
-            var inc = -1; var row = this.moduleCount - 1; var bitIndex = 7; var byteIndex = 0; for (var col = this.moduleCount - 1; col > 0; col -= 2) {
-                if (col == 6) col--; while (true) {
-                    for (var c = 0; c < 2; c++) {
+            let inc = -1;
+            let row = this.moduleCount - 1;
+            let bitIndex = 7;
+            let byteIndex = 0;
+            for (let col = this.moduleCount - 1; col > 0; col -= 2) {
+                if (col === 6) col--;
+                while (true) {
+                    for (let c = 0; c < 2; c++) {
                         if (this.modules[row][col - c] == null) {
-                            var dark = false; if (byteIndex < data.length) { dark = (((data[byteIndex] >>> bitIndex) & 1) == 1); }
-                            var mask = QRUtil.getMask(maskPattern, row, col - c); if (mask) { dark = !dark; }
-                            this.modules[row][col - c] = dark; bitIndex--; if (bitIndex == -1) { byteIndex++; bitIndex = 7; }
+                            let dark = false;
+                            if (byteIndex < data.length) {
+                                dark = (((data[byteIndex] >>> bitIndex) & 1) === 1);
+                            }
+                            const mask = QRUtil.getMask(maskPattern, row, col - c);
+                            if (mask) {
+                                dark = !dark;
+                            }
+                            this.modules[row][col - c] = dark;
+                            bitIndex--;
+                            if (bitIndex === -1) {
+                                byteIndex++;
+                                bitIndex = 7;
+                            }
                         }
                     }
-                    row += inc; if (row < 0 || this.moduleCount <= row) { row -= inc; inc = -inc; break; }
+                    row += inc;
+                    if (row < 0 || this.moduleCount <= row) {
+                        row -= inc;
+                        inc = -inc;
+                        break;
+                    }
                 }
             }
         }
-    }; QRCodeModel.PAD0 = 0xEC; QRCodeModel.PAD1 = 0x11; QRCodeModel.createData = function (typeNumber, errorCorrectLevel, dataList) {
-        var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel); var buffer = new QRBitBuffer(); for (var i = 0; i < dataList.length; i++) { var data = dataList[i]; buffer.put(data.mode, 4); buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber)); data.write(buffer); }
-        var totalDataCount = 0; for (var i = 0; i < rsBlocks.length; i++) { totalDataCount += rsBlocks[i].dataCount; }
+    };
+    QRCodeModel.PAD0 = 0xEC;
+    QRCodeModel.PAD1 = 0x11;
+    QRCodeModel.createData = function (typeNumber, errorCorrectLevel, dataList) {
+        const rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel);
+        const buffer = new QRBitBuffer();
+        for (var i = 0; i < dataList.length; i++) {
+            const data = dataList[i];
+            buffer.put(data.mode, 4);
+            buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber));
+            data.write(buffer);
+        }
+        let totalDataCount = 0;
+        for (var i = 0; i < rsBlocks.length; i++) {
+            totalDataCount += rsBlocks[i].dataCount;
+        }
         if (buffer.getLengthInBits() > totalDataCount * 8) {
             throw new Error("code length overflow. ("
                 + buffer.getLengthInBits()
@@ -146,133 +263,434 @@ var QRCode;
                 + totalDataCount * 8
                 + ")");
         }
-        if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) { buffer.put(0, 4); }
-        while (buffer.getLengthInBits() % 8 != 0) { buffer.putBit(false); }
+        if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) {
+            buffer.put(0, 4);
+        }
+        while (buffer.getLengthInBits() % 8 !== 0) {
+            buffer.putBit(false);
+        }
         while (true) {
-            if (buffer.getLengthInBits() >= totalDataCount * 8) { break; }
-            buffer.put(QRCodeModel.PAD0, 8); if (buffer.getLengthInBits() >= totalDataCount * 8) { break; }
+            if (buffer.getLengthInBits() >= totalDataCount * 8) {
+                break;
+            }
+            buffer.put(QRCodeModel.PAD0, 8);
+            if (buffer.getLengthInBits() >= totalDataCount * 8) {
+                break;
+            }
             buffer.put(QRCodeModel.PAD1, 8);
         }
         return QRCodeModel.createBytes(buffer, rsBlocks);
-    }; QRCodeModel.createBytes = function (buffer, rsBlocks) {
-        var offset = 0; var maxDcCount = 0; var maxEcCount = 0; var dcdata = new Array(rsBlocks.length); var ecdata = new Array(rsBlocks.length); for (var r = 0; r < rsBlocks.length; r++) {
-            var dcCount = rsBlocks[r].dataCount; var ecCount = rsBlocks[r].totalCount - dcCount; maxDcCount = Math.max(maxDcCount, dcCount); maxEcCount = Math.max(maxEcCount, ecCount); dcdata[r] = new Array(dcCount); for (var i = 0; i < dcdata[r].length; i++) { dcdata[r][i] = 0xff & buffer.buffer[i + offset]; }
-            offset += dcCount; var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount); var rawPoly = new QRPolynomial(dcdata[r], rsPoly.getLength() - 1); var modPoly = rawPoly.mod(rsPoly); ecdata[r] = new Array(rsPoly.getLength() - 1); for (var i = 0; i < ecdata[r].length; i++) { var modIndex = i + modPoly.getLength() - ecdata[r].length; ecdata[r][i] = (modIndex >= 0) ? modPoly.get(modIndex) : 0; }
-        }
-        var totalCodeCount = 0; for (var i = 0; i < rsBlocks.length; i++) { totalCodeCount += rsBlocks[i].totalCount; }
-        var data = new Array(totalCodeCount); var index = 0; for (var i = 0; i < maxDcCount; i++) { for (var r = 0; r < rsBlocks.length; r++) { if (i < dcdata[r].length) { data[index++] = dcdata[r][i]; } } }
-        for (var i = 0; i < maxEcCount; i++) { for (var r = 0; r < rsBlocks.length; r++) { if (i < ecdata[r].length) { data[index++] = ecdata[r][i]; } } }
+    };
+    QRCodeModel.createBytes = function (buffer, rsBlocks) {
+        let offset = 0;
+        let maxDcCount = 0;
+        let maxEcCount = 0;
+        const dcdata = new Array(rsBlocks.length);
+        const ecdata = new Array(rsBlocks.length);
+        for (var r = 0; r < rsBlocks.length; r++) {
+            const dcCount = rsBlocks[r].dataCount;
+            const ecCount = rsBlocks[r].totalCount - dcCount;
+            maxDcCount = Math.max(maxDcCount, dcCount);
+            maxEcCount = Math.max(maxEcCount, ecCount);
+            dcdata[r] = new Array(dcCount);
+            for (var i = 0; i < dcdata[r].length; i++) {
+                dcdata[r][i] = 0xff & buffer.buffer[i + offset];
+            }
+            offset += dcCount;
+            const rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount);
+            const rawPoly = new QRPolynomial(dcdata[r], rsPoly.getLength() - 1);
+            const modPoly = rawPoly.mod(rsPoly);
+            ecdata[r] = new Array(rsPoly.getLength() - 1);
+            for (var i = 0; i < ecdata[r].length; i++) {
+                const modIndex = i + modPoly.getLength() - ecdata[r].length;
+                ecdata[r][i] = (modIndex >= 0) ? modPoly.get(modIndex) : 0;
+            }
+        }
+        let totalCodeCount = 0;
+        for (var i = 0; i < rsBlocks.length; i++) {
+            totalCodeCount += rsBlocks[i].totalCount;
+        }
+        const data = new Array(totalCodeCount);
+        let index = 0;
+        for (var i = 0; i < maxDcCount; i++) {
+            for (var r = 0; r < rsBlocks.length; r++) {
+                if (i < dcdata[r].length) {
+                    data[index++] = dcdata[r][i];
+                }
+            }
+        }
+        for (var i = 0; i < maxEcCount; i++) {
+            for (var r = 0; r < rsBlocks.length; r++) {
+                if (i < ecdata[r].length) {
+                    data[index++] = ecdata[r][i];
+                }
+            }
+        }
         return data;
-    }; var QRMode = { MODE_NUMBER: 1 << 0, MODE_ALPHA_NUM: 1 << 1, MODE_8BIT_BYTE: 1 << 2, MODE_KANJI: 1 << 3 }; var QRErrorCorrectLevel = { L: 1, M: 0, Q: 3, H: 2 }; var QRMaskPattern = { PATTERN000: 0, PATTERN001: 1, PATTERN010: 2, PATTERN011: 3, PATTERN100: 4, PATTERN101: 5, PATTERN110: 6, PATTERN111: 7 }; var QRUtil = {
-        PATTERN_POSITION_TABLE: [[], [6, 18], [6, 22], [6, 26], [6, 30], [6, 34], [6, 22, 38], [6, 24, 42], [6, 26, 46], [6, 28, 50], [6, 30, 54], [6, 32, 58], [6, 34, 62], [6, 26, 46, 66], [6, 26, 48, 70], [6, 26, 50, 74], [6, 30, 54, 78], [6, 30, 56, 82], [6, 30, 58, 86], [6, 34, 62, 90], [6, 28, 50, 72, 94], [6, 26, 50, 74, 98], [6, 30, 54, 78, 102], [6, 28, 54, 80, 106], [6, 32, 58, 84, 110], [6, 30, 58, 86, 114], [6, 34, 62, 90, 118], [6, 26, 50, 74, 98, 122], [6, 30, 54, 78, 102, 126], [6, 26, 52, 78, 104, 130], [6, 30, 56, 82, 108, 134], [6, 34, 60, 86, 112, 138], [6, 30, 58, 86, 114, 142], [6, 34, 62, 90, 118, 146], [6, 30, 54, 78, 102, 126, 150], [6, 24, 50, 76, 102, 128, 154], [6, 28, 54, 80, 106, 132, 158], [6, 32, 58, 84, 110, 136, 162], [6, 26, 54, 82, 110, 138, 166], [6, 30, 58, 86, 114, 142, 170]], G15: (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0), G18: (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0), G15_MASK: (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1), getBCHTypeInfo: function (data) {
-            var d = data << 10; while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) { d ^= (QRUtil.G15 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15))); }
+    };
+    var QRMode = {MODE_NUMBER: 1 << 0, MODE_ALPHA_NUM: 1 << 1, MODE_8BIT_BYTE: 1 << 2, MODE_KANJI: 1 << 3};
+    const QRErrorCorrectLevel = {L: 1, M: 0, Q: 3, H: 2};
+    const QRMaskPattern = {
+        PATTERN000: 0,
+        PATTERN001: 1,
+        PATTERN010: 2,
+        PATTERN011: 3,
+        PATTERN100: 4,
+        PATTERN101: 5,
+        PATTERN110: 6,
+        PATTERN111: 7
+    };
+    var QRUtil = {
+        PATTERN_POSITION_TABLE: [[], [6, 18], [6, 22], [6, 26], [6, 30], [6, 34], [6, 22, 38], [6, 24, 42], [6, 26, 46], [6, 28, 50], [6, 30, 54], [6, 32, 58], [6, 34, 62], [6, 26, 46, 66], [6, 26, 48, 70], [6, 26, 50, 74], [6, 30, 54, 78], [6, 30, 56, 82], [6, 30, 58, 86], [6, 34, 62, 90], [6, 28, 50, 72, 94], [6, 26, 50, 74, 98], [6, 30, 54, 78, 102], [6, 28, 54, 80, 106], [6, 32, 58, 84, 110], [6, 30, 58, 86, 114], [6, 34, 62, 90, 118], [6, 26, 50, 74, 98, 122], [6, 30, 54, 78, 102, 126], [6, 26, 52, 78, 104, 130], [6, 30, 56, 82, 108, 134], [6, 34, 60, 86, 112, 138], [6, 30, 58, 86, 114, 142], [6, 34, 62, 90, 118, 146], [6, 30, 54, 78, 102, 126, 150], [6, 24, 50, 76, 102, 128, 154], [6, 28, 54, 80, 106, 132, 158], [6, 32, 58, 84, 110, 136, 162], [6, 26, 54, 82, 110, 138, 166], [6, 30, 58, 86, 114, 142, 170]],
+        G15: (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0),
+        G18: (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0),
+        G15_MASK: (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1),
+        getBCHTypeInfo: function (data) {
+            let d = data << 10;
+            while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) {
+                d ^= (QRUtil.G15 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15)));
+            }
             return ((data << 10) | d) ^ QRUtil.G15_MASK;
-        }, getBCHTypeNumber: function (data) {
-            var d = data << 12; while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) { d ^= (QRUtil.G18 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18))); }
+        },
+        getBCHTypeNumber: function (data) {
+            let d = data << 12;
+            while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) {
+                d ^= (QRUtil.G18 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18)));
+            }
             return (data << 12) | d;
-        }, getBCHDigit: function (data) {
-            var digit = 0; while (data != 0) { digit++; data >>>= 1; }
+        },
+        getBCHDigit: function (data) {
+            let digit = 0;
+            while (data !== 0) {
+                digit++;
+                data >>>= 1;
+            }
             return digit;
-        }, getPatternPosition: function (typeNumber) { return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1]; }, getMask: function (maskPattern, i, j) { switch (maskPattern) { case QRMaskPattern.PATTERN000: return (i + j) % 2 == 0; case QRMaskPattern.PATTERN001: return i % 2 == 0; case QRMaskPattern.PATTERN010: return j % 3 == 0; case QRMaskPattern.PATTERN011: return (i + j) % 3 == 0; case QRMaskPattern.PATTERN100: return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 == 0; case QRMaskPattern.PATTERN101: return (i * j) % 2 + (i * j) % 3 == 0; case QRMaskPattern.PATTERN110: return ((i * j) % 2 + (i * j) % 3) % 2 == 0; case QRMaskPattern.PATTERN111: return ((i * j) % 3 + (i + j) % 2) % 2 == 0; default: throw new Error("bad maskPattern:" + maskPattern); } }, getErrorCorrectPolynomial: function (errorCorrectLength) {
-            var a = new QRPolynomial([1], 0); for (var i = 0; i < errorCorrectLength; i++) { a = a.multiply(new QRPolynomial([1, QRMath.gexp(i)], 0)); }
+        },
+        getPatternPosition: function (typeNumber) {
+            return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1];
+        },
+        getMask: function (maskPattern, i, j) {
+            switch (maskPattern) {
+                case QRMaskPattern.PATTERN000:
+                    return (i + j) % 2 === 0;
+                case QRMaskPattern.PATTERN001:
+                    return i % 2 === 0;
+                case QRMaskPattern.PATTERN010:
+                    return j % 3 === 0;
+                case QRMaskPattern.PATTERN011:
+                    return (i + j) % 3 === 0;
+                case QRMaskPattern.PATTERN100:
+                    return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 === 0;
+                case QRMaskPattern.PATTERN101:
+                    return (i * j) % 2 + (i * j) % 3 === 0;
+                case QRMaskPattern.PATTERN110:
+                    return ((i * j) % 2 + (i * j) % 3) % 2 === 0;
+                case QRMaskPattern.PATTERN111:
+                    return ((i * j) % 3 + (i + j) % 2) % 2 === 0;
+                default:
+                    throw new Error("bad maskPattern:" + maskPattern);
+            }
+        },
+        getErrorCorrectPolynomial: function (errorCorrectLength) {
+            let a = new QRPolynomial([1], 0);
+            for (let i = 0; i < errorCorrectLength; i++) {
+                a = a.multiply(new QRPolynomial([1, QRMath.gexp(i)], 0));
+            }
             return a;
-        }, getLengthInBits: function (mode, type) { if (1 <= type && type < 10) { switch (mode) { case QRMode.MODE_NUMBER: return 10; case QRMode.MODE_ALPHA_NUM: return 9; case QRMode.MODE_8BIT_BYTE: return 8; case QRMode.MODE_KANJI: return 8; default: throw new Error("mode:" + mode); } } else if (type < 27) { switch (mode) { case QRMode.MODE_NUMBER: return 12; case QRMode.MODE_ALPHA_NUM: return 11; case QRMode.MODE_8BIT_BYTE: return 16; case QRMode.MODE_KANJI: return 10; default: throw new Error("mode:" + mode); } } else if (type < 41) { switch (mode) { case QRMode.MODE_NUMBER: return 14; case QRMode.MODE_ALPHA_NUM: return 13; case QRMode.MODE_8BIT_BYTE: return 16; case QRMode.MODE_KANJI: return 12; default: throw new Error("mode:" + mode); } } else { throw new Error("type:" + type); } }, getLostPoint: function (qrCode) {
-            var moduleCount = qrCode.getModuleCount(); var lostPoint = 0; for (var row = 0; row < moduleCount; row++) {
+        },
+        getLengthInBits: function (mode, type) {
+            if (1 <= type && type < 10) {
+                switch (mode) {
+                    case QRMode.MODE_NUMBER:
+                        return 10;
+                    case QRMode.MODE_ALPHA_NUM:
+                        return 9;
+                    case QRMode.MODE_8BIT_BYTE:
+                        return 8;
+                    case QRMode.MODE_KANJI:
+                        return 8;
+                    default:
+                        throw new Error("mode:" + mode);
+                }
+            } else if (type < 27) {
+                switch (mode) {
+                    case QRMode.MODE_NUMBER:
+                        return 12;
+                    case QRMode.MODE_ALPHA_NUM:
+                        return 11;
+                    case QRMode.MODE_8BIT_BYTE:
+                        return 16;
+                    case QRMode.MODE_KANJI:
+                        return 10;
+                    default:
+                        throw new Error("mode:" + mode);
+                }
+            } else if (type < 41) {
+                switch (mode) {
+                    case QRMode.MODE_NUMBER:
+                        return 14;
+                    case QRMode.MODE_ALPHA_NUM:
+                        return 13;
+                    case QRMode.MODE_8BIT_BYTE:
+                        return 16;
+                    case QRMode.MODE_KANJI:
+                        return 12;
+                    default:
+                        throw new Error("mode:" + mode);
+                }
+            } else {
+                throw new Error("type:" + type);
+            }
+        },
+        getLostPoint: function (qrCode) {
+            const moduleCount = qrCode.getModuleCount();
+            let lostPoint = 0;
+            for (var row = 0; row < moduleCount; row++) {
                 for (var col = 0; col < moduleCount; col++) {
-                    var sameCount = 0; var dark = qrCode.isDark(row, col); for (var r = -1; r <= 1; r++) {
-                        if (row + r < 0 || moduleCount <= row + r) { continue; }
-                        for (var c = -1; c <= 1; c++) {
-                            if (col + c < 0 || moduleCount <= col + c) { continue; }
-                            if (r == 0 && c == 0) { continue; }
-                            if (dark == qrCode.isDark(row + r, col + c)) { sameCount++; }
+                    let sameCount = 0;
+                    const dark = qrCode.isDark(row, col);
+                    for (let r = -1; r <= 1; r++) {
+                        if (row + r < 0 || moduleCount <= row + r) {
+                            continue;
+                        }
+                        for (let c = -1; c <= 1; c++) {
+                            if (col + c < 0 || moduleCount <= col + c) {
+                                continue;
+                            }
+                            if (r === 0 && c === 0) {
+                                continue;
+                            }
+                            if (dark === qrCode.isDark(row + r, col + c)) {
+                                sameCount++;
+                            }
                         }
                     }
-                    if (sameCount > 5) { lostPoint += (3 + sameCount - 5); }
+                    if (sameCount > 5) {
+                        lostPoint += (3 + sameCount - 5);
+                    }
                 }
             }
-            for (var row = 0; row < moduleCount - 1; row++) { for (var col = 0; col < moduleCount - 1; col++) { var count = 0; if (qrCode.isDark(row, col)) count++; if (qrCode.isDark(row + 1, col)) count++; if (qrCode.isDark(row, col + 1)) count++; if (qrCode.isDark(row + 1, col + 1)) count++; if (count == 0 || count == 4) { lostPoint += 3; } } }
-            for (var row = 0; row < moduleCount; row++) { for (var col = 0; col < moduleCount - 6; col++) { if (qrCode.isDark(row, col) && !qrCode.isDark(row, col + 1) && qrCode.isDark(row, col + 2) && qrCode.isDark(row, col + 3) && qrCode.isDark(row, col + 4) && !qrCode.isDark(row, col + 5) && qrCode.isDark(row, col + 6)) { lostPoint += 40; } } }
-            for (var col = 0; col < moduleCount; col++) { for (var row = 0; row < moduleCount - 6; row++) { if (qrCode.isDark(row, col) && !qrCode.isDark(row + 1, col) && qrCode.isDark(row + 2, col) && qrCode.isDark(row + 3, col) && qrCode.isDark(row + 4, col) && !qrCode.isDark(row + 5, col) && qrCode.isDark(row + 6, col)) { lostPoint += 40; } } }
-            var darkCount = 0; for (var col = 0; col < moduleCount; col++) { for (var row = 0; row < moduleCount; row++) { if (qrCode.isDark(row, col)) { darkCount++; } } }
-            var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5; lostPoint += ratio * 10; return lostPoint;
+            for (var row = 0; row < moduleCount - 1; row++) {
+                for (var col = 0; col < moduleCount - 1; col++) {
+                    let count = 0;
+                    if (qrCode.isDark(row, col)) count++;
+                    if (qrCode.isDark(row + 1, col)) count++;
+                    if (qrCode.isDark(row, col + 1)) count++;
+                    if (qrCode.isDark(row + 1, col + 1)) count++;
+                    if (count === 0 || count === 4) {
+                        lostPoint += 3;
+                    }
+                }
+            }
+            for (var row = 0; row < moduleCount; row++) {
+                for (var col = 0; col < moduleCount - 6; col++) {
+                    if (qrCode.isDark(row, col) && !qrCode.isDark(row, col + 1) && qrCode.isDark(row, col + 2) && qrCode.isDark(row, col + 3) && qrCode.isDark(row, col + 4) && !qrCode.isDark(row, col + 5) && qrCode.isDark(row, col + 6)) {
+                        lostPoint += 40;
+                    }
+                }
+            }
+            for (var col = 0; col < moduleCount; col++) {
+                for (var row = 0; row < moduleCount - 6; row++) {
+                    if (qrCode.isDark(row, col) && !qrCode.isDark(row + 1, col) && qrCode.isDark(row + 2, col) && qrCode.isDark(row + 3, col) && qrCode.isDark(row + 4, col) && !qrCode.isDark(row + 5, col) && qrCode.isDark(row + 6, col)) {
+                        lostPoint += 40;
+                    }
+                }
+            }
+            let darkCount = 0;
+            for (var col = 0; col < moduleCount; col++) {
+                for (var row = 0; row < moduleCount; row++) {
+                    if (qrCode.isDark(row, col)) {
+                        darkCount++;
+                    }
+                }
+            }
+            const ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5;
+            lostPoint += ratio * 10;
+            return lostPoint;
         }
-    }; var QRMath = {
+    };
+    var QRMath = {
         glog: function (n) {
-            if (n < 1) { throw new Error("glog(" + n + ")"); }
+            if (n < 1) {
+                throw new Error("glog(" + n + ")");
+            }
             return QRMath.LOG_TABLE[n];
         }, gexp: function (n) {
-            while (n < 0) { n += 255; }
-            while (n >= 256) { n -= 255; }
+            while (n < 0) {
+                n += 255;
+            }
+            while (n >= 256) {
+                n -= 255;
+            }
             return QRMath.EXP_TABLE[n];
         }, EXP_TABLE: new Array(256), LOG_TABLE: new Array(256)
-    }; for (var i = 0; i < 8; i++) { QRMath.EXP_TABLE[i] = 1 << i; }
-    for (var i = 8; i < 256; i++) { QRMath.EXP_TABLE[i] = QRMath.EXP_TABLE[i - 4] ^ QRMath.EXP_TABLE[i - 5] ^ QRMath.EXP_TABLE[i - 6] ^ QRMath.EXP_TABLE[i - 8]; }
-    for (var i = 0; i < 255; i++) { QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]] = i; }
+    };
+    for (var i = 0; i < 8; i++) {
+        QRMath.EXP_TABLE[i] = 1 << i;
+    }
+    for (var i = 8; i < 256; i++) {
+        QRMath.EXP_TABLE[i] = QRMath.EXP_TABLE[i - 4] ^ QRMath.EXP_TABLE[i - 5] ^ QRMath.EXP_TABLE[i - 6] ^ QRMath.EXP_TABLE[i - 8];
+    }
+    for (var i = 0; i < 255; i++) {
+        QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]] = i;
+    }
+
     function QRPolynomial(num, shift) {
-        if (num.length == undefined) { throw new Error(num.length + "/" + shift); }
-        var offset = 0; while (offset < num.length && num[offset] == 0) { offset++; }
-        this.num = new Array(num.length - offset + shift); for (var i = 0; i < num.length - offset; i++) { this.num[i] = num[i + offset]; }
+        if (num.length === undefined) {
+            throw new Error(num.length + "/" + shift);
+        }
+        let offset = 0;
+        while (offset < num.length && num[offset] === 0) {
+            offset++;
+        }
+        this.num = new Array(num.length - offset + shift);
+        for (let i = 0; i < num.length - offset; i++) {
+            this.num[i] = num[i + offset];
+        }
     }
+
     QRPolynomial.prototype = {
-        get: function (index) { return this.num[index]; }, getLength: function () { return this.num.length; }, multiply: function (e) {
-            var num = new Array(this.getLength() + e.getLength() - 1); for (var i = 0; i < this.getLength(); i++) { for (var j = 0; j < e.getLength(); j++) { num[i + j] ^= QRMath.gexp(QRMath.glog(this.get(i)) + QRMath.glog(e.get(j))); } }
+        get: function (index) {
+            return this.num[index];
+        }, getLength: function () {
+            return this.num.length;
+        }, multiply: function (e) {
+            const num = new Array(this.getLength() + e.getLength() - 1);
+            for (let i = 0; i < this.getLength(); i++) {
+                for (let j = 0; j < e.getLength(); j++) {
+                    num[i + j] ^= QRMath.gexp(QRMath.glog(this.get(i)) + QRMath.glog(e.get(j)));
+                }
+            }
             return new QRPolynomial(num, 0);
         }, mod: function (e) {
-            if (this.getLength() - e.getLength() < 0) { return this; }
-            var ratio = QRMath.glog(this.get(0)) - QRMath.glog(e.get(0)); var num = new Array(this.getLength()); for (var i = 0; i < this.getLength(); i++) { num[i] = this.get(i); }
-            for (var i = 0; i < e.getLength(); i++) { num[i] ^= QRMath.gexp(QRMath.glog(e.get(i)) + ratio); }
+            if (this.getLength() - e.getLength() < 0) {
+                return this;
+            }
+            const ratio = QRMath.glog(this.get(0)) - QRMath.glog(e.get(0));
+            const num = new Array(this.getLength());
+            for (var i = 0; i < this.getLength(); i++) {
+                num[i] = this.get(i);
+            }
+            for (var i = 0; i < e.getLength(); i++) {
+                num[i] ^= QRMath.gexp(QRMath.glog(e.get(i)) + ratio);
+            }
             return new QRPolynomial(num, 0).mod(e);
         }
-    }; function QRRSBlock(totalCount, dataCount) { this.totalCount = totalCount; this.dataCount = dataCount; }
-    QRRSBlock.RS_BLOCK_TABLE = [[1, 26, 19], [1, 26, 16], [1, 26, 13], [1, 26, 9], [1, 44, 34], [1, 44, 28], [1, 44, 22], [1, 44, 16], [1, 70, 55], [1, 70, 44], [2, 35, 17], [2, 35, 13], [1, 100, 80], [2, 50, 32], [2, 50, 24], [4, 25, 9], [1, 134, 108], [2, 67, 43], [2, 33, 15, 2, 34, 16], [2, 33, 11, 2, 34, 12], [2, 86, 68], [4, 43, 27], [4, 43, 19], [4, 43, 15], [2, 98, 78], [4, 49, 31], [2, 32, 14, 4, 33, 15], [4, 39, 13, 1, 40, 14], [2, 121, 97], [2, 60, 38, 2, 61, 39], [4, 40, 18, 2, 41, 19], [4, 40, 14, 2, 41, 15], [2, 146, 116], [3, 58, 36, 2, 59, 37], [4, 36, 16, 4, 37, 17], [4, 36, 12, 4, 37, 13], [2, 86, 68, 2, 87, 69], [4, 69, 43, 1, 70, 44], [6, 43, 19, 2, 44, 20], [6, 43, 15, 2, 44, 16], [4, 101, 81], [1, 80, 50, 4, 81, 51], [4, 50, 22, 4, 51, 23], [3, 36, 12, 8, 37, 13], [2, 116, 92, 2, 117, 93], [6, 58, 36, 2, 59, 37], [4, 46, 20, 6, 47, 21], [7, 42, 14, 4, 43, 15], [4, 133, 107], [8, 59, 37, 1, 60, 38], [8, 44, 20, 4, 45, 21], [12, 33, 11, 4, 34, 12], [3, 145, 115, 1, 146, 116], [4, 64, 40, 5, 65, 41], [11, 36, 16, 5, 37, 17], [11, 36, 12, 5, 37, 13], [5, 109, 87, 1, 110, 88], [5, 65, 41, 5, 66, 42], [5, 54, 24, 7, 55, 25], [11, 36, 12], [5, 122, 98, 1, 123, 99], [7, 73, 45, 3, 74, 46], [15, 43, 19, 2, 44, 20], [3, 45, 15, 13, 46, 16], [1, 135, 107, 5, 136, 108], [10, 74, 46, 1, 75, 47], [1, 50, 22, 15, 51, 23], [2, 42, 14, 17, 43, 15], [5, 150, 120, 1, 151, 121], [9, 69, 43, 4, 70, 44], [17, 50, 22, 1, 51, 23], [2, 42, 14, 19, 43, 15], [3, 141, 113, 4, 142, 114], [3, 70, 44, 11, 71, 45], [17, 47, 21, 4, 48, 22], [9, 39, 13, 16, 40, 14], [3, 135, 107, 5, 136, 108], [3, 67, 41, 13, 68, 42], [15, 54, 24, 5, 55, 25], [15, 43, 15, 10, 44, 16], [4, 144, 116, 4, 145, 117], [17, 68, 42], [17, 50, 22, 6, 51, 23], [19, 46, 16, 6, 47, 17], [2, 139, 111, 7, 140, 112], [17, 74, 46], [7, 54, 24, 16, 55, 25], [34, 37, 13], [4, 151, 121, 5, 152, 122], [4, 75, 47, 14, 76, 48], [11, 54, 24, 14, 55, 25], [16, 45, 15, 14, 46, 16], [6, 147, 117, 4, 148, 118], [6, 73, 45, 14, 74, 46], [11, 54, 24, 16, 55, 25], [30, 46, 16, 2, 47, 17], [8, 132, 106, 4, 133, 107], [8, 75, 47, 13, 76, 48], [7, 54, 24, 22, 55, 25], [22, 45, 15, 13, 46, 16], [10, 142, 114, 2, 143, 115], [19, 74, 46, 4, 75, 47], [28, 50, 22, 6, 51, 23], [33, 46, 16, 4, 47, 17], [8, 152, 122, 4, 153, 123], [22, 73, 45, 3, 74, 46], [8, 53, 23, 26, 54, 24], [12, 45, 15, 28, 46, 16], [3, 147, 117, 10, 148, 118], [3, 73, 45, 23, 74, 46], [4, 54, 24, 31, 55, 25], [11, 45, 15, 31, 46, 16], [7, 146, 116, 7, 147, 117], [21, 73, 45, 7, 74, 46], [1, 53, 23, 37, 54, 24], [19, 45, 15, 26, 46, 16], [5, 145, 115, 10, 146, 116], [19, 75, 47, 10, 76, 48], [15, 54, 24, 25, 55, 25], [23, 45, 15, 25, 46, 16], [13, 145, 115, 3, 146, 116], [2, 74, 46, 29, 75, 47], [42, 54, 24, 1, 55, 25], [23, 45, 15, 28, 46, 16], [17, 145, 115], [10, 74, 46, 23, 75, 47], [10, 54, 24, 35, 55, 25], [19, 45, 15, 35, 46, 16], [17, 145, 115, 1, 146, 116], [14, 74, 46, 21, 75, 47], [29, 54, 24, 19, 55, 25], [11, 45, 15, 46, 46, 16], [13, 145, 115, 6, 146, 116], [14, 74, 46, 23, 75, 47], [44, 54, 24, 7, 55, 25], [59, 46, 16, 1, 47, 17], [12, 151, 121, 7, 152, 122], [12, 75, 47, 26, 76, 48], [39, 54, 24, 14, 55, 25], [22, 45, 15, 41, 46, 16], [6, 151, 121, 14, 152, 122], [6, 75, 47, 34, 76, 48], [46, 54, 24, 10, 55, 25], [2, 45, 15, 64, 46, 16], [17, 152, 122, 4, 153, 123], [29, 74, 46, 14, 75, 47], [49, 54, 24, 10, 55, 25], [24, 45, 15, 46, 46, 16], [4, 152, 122, 18, 153, 123], [13, 74, 46, 32, 75, 47], [48, 54, 24, 14, 55, 25], [42, 45, 15, 32, 46, 16], [20, 147, 117, 4, 148, 118], [40, 75, 47, 7, 76, 48], [43, 54, 24, 22, 55, 25], [10, 45, 15, 67, 46, 16], [19, 148, 118, 6, 149, 119], [18, 75, 47, 31, 76, 48], [34, 54, 24, 34, 55, 25], [20, 45, 15, 61, 46, 16]]; QRRSBlock.getRSBlocks = function (typeNumber, errorCorrectLevel) {
-        var rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel); if (rsBlock == undefined) { throw new Error("bad rs block @ typeNumber:" + typeNumber + "/errorCorrectLevel:" + errorCorrectLevel); }
-        var length = rsBlock.length / 3; var list = []; for (var i = 0; i < length; i++) { var count = rsBlock[i * 3 + 0]; var totalCount = rsBlock[i * 3 + 1]; var dataCount = rsBlock[i * 3 + 2]; for (var j = 0; j < count; j++) { list.push(new QRRSBlock(totalCount, dataCount)); } }
+    };
+
+    function QRRSBlock(totalCount, dataCount) {
+        this.totalCount = totalCount;
+        this.dataCount = dataCount;
+    }
+
+    QRRSBlock.RS_BLOCK_TABLE = [[1, 26, 19], [1, 26, 16], [1, 26, 13], [1, 26, 9], [1, 44, 34], [1, 44, 28], [1, 44, 22], [1, 44, 16], [1, 70, 55], [1, 70, 44], [2, 35, 17], [2, 35, 13], [1, 100, 80], [2, 50, 32], [2, 50, 24], [4, 25, 9], [1, 134, 108], [2, 67, 43], [2, 33, 15, 2, 34, 16], [2, 33, 11, 2, 34, 12], [2, 86, 68], [4, 43, 27], [4, 43, 19], [4, 43, 15], [2, 98, 78], [4, 49, 31], [2, 32, 14, 4, 33, 15], [4, 39, 13, 1, 40, 14], [2, 121, 97], [2, 60, 38, 2, 61, 39], [4, 40, 18, 2, 41, 19], [4, 40, 14, 2, 41, 15], [2, 146, 116], [3, 58, 36, 2, 59, 37], [4, 36, 16, 4, 37, 17], [4, 36, 12, 4, 37, 13], [2, 86, 68, 2, 87, 69], [4, 69, 43, 1, 70, 44], [6, 43, 19, 2, 44, 20], [6, 43, 15, 2, 44, 16], [4, 101, 81], [1, 80, 50, 4, 81, 51], [4, 50, 22, 4, 51, 23], [3, 36, 12, 8, 37, 13], [2, 116, 92, 2, 117, 93], [6, 58, 36, 2, 59, 37], [4, 46, 20, 6, 47, 21], [7, 42, 14, 4, 43, 15], [4, 133, 107], [8, 59, 37, 1, 60, 38], [8, 44, 20, 4, 45, 21], [12, 33, 11, 4, 34, 12], [3, 145, 115, 1, 146, 116], [4, 64, 40, 5, 65, 41], [11, 36, 16, 5, 37, 17], [11, 36, 12, 5, 37, 13], [5, 109, 87, 1, 110, 88], [5, 65, 41, 5, 66, 42], [5, 54, 24, 7, 55, 25], [11, 36, 12], [5, 122, 98, 1, 123, 99], [7, 73, 45, 3, 74, 46], [15, 43, 19, 2, 44, 20], [3, 45, 15, 13, 46, 16], [1, 135, 107, 5, 136, 108], [10, 74, 46, 1, 75, 47], [1, 50, 22, 15, 51, 23], [2, 42, 14, 17, 43, 15], [5, 150, 120, 1, 151, 121], [9, 69, 43, 4, 70, 44], [17, 50, 22, 1, 51, 23], [2, 42, 14, 19, 43, 15], [3, 141, 113, 4, 142, 114], [3, 70, 44, 11, 71, 45], [17, 47, 21, 4, 48, 22], [9, 39, 13, 16, 40, 14], [3, 135, 107, 5, 136, 108], [3, 67, 41, 13, 68, 42], [15, 54, 24, 5, 55, 25], [15, 43, 15, 10, 44, 16], [4, 144, 116, 4, 145, 117], [17, 68, 42], [17, 50, 22, 6, 51, 23], [19, 46, 16, 6, 47, 17], [2, 139, 111, 7, 140, 112], [17, 74, 46], [7, 54, 24, 16, 55, 25], [34, 37, 13], [4, 151, 121, 5, 152, 122], [4, 75, 47, 14, 76, 48], [11, 54, 24, 14, 55, 25], [16, 45, 15, 14, 46, 16], [6, 147, 117, 4, 148, 118], [6, 73, 45, 14, 74, 46], [11, 54, 24, 16, 55, 25], [30, 46, 16, 2, 47, 17], [8, 132, 106, 4, 133, 107], [8, 75, 47, 13, 76, 48], [7, 54, 24, 22, 55, 25], [22, 45, 15, 13, 46, 16], [10, 142, 114, 2, 143, 115], [19, 74, 46, 4, 75, 47], [28, 50, 22, 6, 51, 23], [33, 46, 16, 4, 47, 17], [8, 152, 122, 4, 153, 123], [22, 73, 45, 3, 74, 46], [8, 53, 23, 26, 54, 24], [12, 45, 15, 28, 46, 16], [3, 147, 117, 10, 148, 118], [3, 73, 45, 23, 74, 46], [4, 54, 24, 31, 55, 25], [11, 45, 15, 31, 46, 16], [7, 146, 116, 7, 147, 117], [21, 73, 45, 7, 74, 46], [1, 53, 23, 37, 54, 24], [19, 45, 15, 26, 46, 16], [5, 145, 115, 10, 146, 116], [19, 75, 47, 10, 76, 48], [15, 54, 24, 25, 55, 25], [23, 45, 15, 25, 46, 16], [13, 145, 115, 3, 146, 116], [2, 74, 46, 29, 75, 47], [42, 54, 24, 1, 55, 25], [23, 45, 15, 28, 46, 16], [17, 145, 115], [10, 74, 46, 23, 75, 47], [10, 54, 24, 35, 55, 25], [19, 45, 15, 35, 46, 16], [17, 145, 115, 1, 146, 116], [14, 74, 46, 21, 75, 47], [29, 54, 24, 19, 55, 25], [11, 45, 15, 46, 46, 16], [13, 145, 115, 6, 146, 116], [14, 74, 46, 23, 75, 47], [44, 54, 24, 7, 55, 25], [59, 46, 16, 1, 47, 17], [12, 151, 121, 7, 152, 122], [12, 75, 47, 26, 76, 48], [39, 54, 24, 14, 55, 25], [22, 45, 15, 41, 46, 16], [6, 151, 121, 14, 152, 122], [6, 75, 47, 34, 76, 48], [46, 54, 24, 10, 55, 25], [2, 45, 15, 64, 46, 16], [17, 152, 122, 4, 153, 123], [29, 74, 46, 14, 75, 47], [49, 54, 24, 10, 55, 25], [24, 45, 15, 46, 46, 16], [4, 152, 122, 18, 153, 123], [13, 74, 46, 32, 75, 47], [48, 54, 24, 14, 55, 25], [42, 45, 15, 32, 46, 16], [20, 147, 117, 4, 148, 118], [40, 75, 47, 7, 76, 48], [43, 54, 24, 22, 55, 25], [10, 45, 15, 67, 46, 16], [19, 148, 118, 6, 149, 119], [18, 75, 47, 31, 76, 48], [34, 54, 24, 34, 55, 25], [20, 45, 15, 61, 46, 16]];
+    QRRSBlock.getRSBlocks = function (typeNumber, errorCorrectLevel) {
+        const rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel);
+        if (rsBlock === undefined) {
+            throw new Error("bad rs block @ typeNumber:" + typeNumber + "/errorCorrectLevel:" + errorCorrectLevel);
+        }
+        const length = rsBlock.length / 3;
+        const list = [];
+        for (let i = 0; i < length; i++) {
+            const count = rsBlock[i * 3];
+            const totalCount = rsBlock[i * 3 + 1];
+            const dataCount = rsBlock[i * 3 + 2];
+            for (let j = 0; j < count; j++) {
+                list.push(new QRRSBlock(totalCount, dataCount));
+            }
+        }
         return list;
-    }; QRRSBlock.getRsBlockTable = function (typeNumber, errorCorrectLevel) { switch (errorCorrectLevel) { case QRErrorCorrectLevel.L: return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0]; case QRErrorCorrectLevel.M: return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1]; case QRErrorCorrectLevel.Q: return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2]; case QRErrorCorrectLevel.H: return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3]; default: return undefined; } }; function QRBitBuffer() { this.buffer = []; this.length = 0; }
+    };
+    QRRSBlock.getRsBlockTable = function (typeNumber, errorCorrectLevel) {
+        switch (errorCorrectLevel) {
+            case QRErrorCorrectLevel.L:
+                return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4];
+            case QRErrorCorrectLevel.M:
+                return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1];
+            case QRErrorCorrectLevel.Q:
+                return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2];
+            case QRErrorCorrectLevel.H:
+                return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3];
+            default:
+                return undefined;
+        }
+    };
+
+    function QRBitBuffer() {
+        this.buffer = [];
+        this.length = 0;
+    }
+
     QRBitBuffer.prototype = {
-        get: function (index) { var bufIndex = Math.floor(index / 8); return ((this.buffer[bufIndex] >>> (7 - index % 8)) & 1) == 1; }, put: function (num, length) { for (var i = 0; i < length; i++) { this.putBit(((num >>> (length - i - 1)) & 1) == 1); } }, getLengthInBits: function () { return this.length; }, putBit: function (bit) {
-            var bufIndex = Math.floor(this.length / 8); if (this.buffer.length <= bufIndex) { this.buffer.push(0); }
-            if (bit) { this.buffer[bufIndex] |= (0x80 >>> (this.length % 8)); }
+        get: function (index) {
+            const bufIndex = Math.floor(index / 8);
+            return ((this.buffer[bufIndex] >>> (7 - index % 8)) & 1) === 1;
+        }, put: function (num, length) {
+            for (let i = 0; i < length; i++) {
+                this.putBit(((num >>> (length - i - 1)) & 1) === 1);
+            }
+        }, getLengthInBits: function () {
+            return this.length;
+        }, putBit: function (bit) {
+            const bufIndex = Math.floor(this.length / 8);
+            if (this.buffer.length <= bufIndex) {
+                this.buffer.push(0);
+            }
+            if (bit) {
+                this.buffer[bufIndex] |= (0x80 >>> (this.length % 8));
+            }
             this.length++;
         }
-    }; var QRCodeLimitLength = [[17, 14, 11, 7], [32, 26, 20, 14], [53, 42, 32, 24], [78, 62, 46, 34], [106, 84, 60, 44], [134, 106, 74, 58], [154, 122, 86, 64], [192, 152, 108, 84], [230, 180, 130, 98], [271, 213, 151, 119], [321, 251, 177, 137], [367, 287, 203, 155], [425, 331, 241, 177], [458, 362, 258, 194], [520, 412, 292, 220], [586, 450, 322, 250], [644, 504, 364, 280], [718, 560, 394, 310], [792, 624, 442, 338], [858, 666, 482, 382], [929, 711, 509, 403], [1003, 779, 565, 439], [1091, 857, 611, 461], [1171, 911, 661, 511], [1273, 997, 715, 535], [1367, 1059, 751, 593], [1465, 1125, 805, 625], [1528, 1190, 868, 658], [1628, 1264, 908, 698], [1732, 1370, 982, 742], [1840, 1452, 1030, 790], [1952, 1538, 1112, 842], [2068, 1628, 1168, 898], [2188, 1722, 1228, 958], [2303, 1809, 1283, 983], [2431, 1911, 1351, 1051], [2563, 1989, 1423, 1093], [2699, 2099, 1499, 1139], [2809, 2213, 1579, 1219], [2953, 2331, 1663, 1273]];
+    };
+    const QRCodeLimitLength = [[17, 14, 11, 7], [32, 26, 20, 14], [53, 42, 32, 24], [78, 62, 46, 34], [106, 84, 60, 44], [134, 106, 74, 58], [154, 122, 86, 64], [192, 152, 108, 84], [230, 180, 130, 98], [271, 213, 151, 119], [321, 251, 177, 137], [367, 287, 203, 155], [425, 331, 241, 177], [458, 362, 258, 194], [520, 412, 292, 220], [586, 450, 322, 250], [644, 504, 364, 280], [718, 560, 394, 310], [792, 624, 442, 338], [858, 666, 482, 382], [929, 711, 509, 403], [1003, 779, 565, 439], [1091, 857, 611, 461], [1171, 911, 661, 511], [1273, 997, 715, 535], [1367, 1059, 751, 593], [1465, 1125, 805, 625], [1528, 1190, 868, 658], [1628, 1264, 908, 698], [1732, 1370, 982, 742], [1840, 1452, 1030, 790], [1952, 1538, 1112, 842], [2068, 1628, 1168, 898], [2188, 1722, 1228, 958], [2303, 1809, 1283, 983], [2431, 1911, 1351, 1051], [2563, 1989, 1423, 1093], [2699, 2099, 1499, 1139], [2809, 2213, 1579, 1219], [2953, 2331, 1663, 1273]];
 
     function _isSupportCanvas() {
         return typeof CanvasRenderingContext2D != "undefined";
     }
 
-    var svgDrawer = (function () {
+    const svgDrawer = (function () {
 
-        var Drawing = function (el, htOption) {
+        const Drawing = function (el, htOption) {
             this._el = el;
             this._htOption = htOption;
         };
 
         Drawing.prototype.draw = function (oQRCode) {
-            var _htOption = this._htOption;
-            var _el = this._el;
-            var nCount = oQRCode.getModuleCount();
+            const _htOption = this._htOption;
+            const _el = this._el;
+            const nCount = oQRCode.getModuleCount();
 
             this.clear();
 
             function makeSVG(tag, attrs) {
-                var el = document.createElementNS('http://www.w3.org/2000/svg', tag);
-                for (var k in attrs)
+                const el = document.createElementNS('http://www.w3.org/2000/svg', tag);
+                for (let k in attrs)
                     if (attrs.hasOwnProperty(k)) el.setAttribute(k, attrs[k]);
                 return el;
             }
 
-            var svg = makeSVG("svg", { 'viewBox': '0 0 ' + String(nCount) + " " + String(nCount), 'width': '100%', 'height': '100%', 'fill': _htOption.colorLight });
+            const svg = makeSVG("svg", {
+                'viewBox': '0 0 ' + String(nCount) + " " + String(nCount),
+                'width': '100%',
+                'height': '100%',
+                'fill': _htOption.colorLight
+            });
             svg.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xlink", "http://www.w3.org/1999/xlink");
             _el.appendChild(svg);
 
-            svg.appendChild(makeSVG("rect", { "fill": _htOption.colorLight, "width": "100%", "height": "100%" }));
-            svg.appendChild(makeSVG("rect", { "fill": _htOption.colorDark, "width": "1", "height": "1", "id": "template" }));
+            svg.appendChild(makeSVG("rect", {"fill": _htOption.colorLight, "width": "100%", "height": "100%"}));
+            svg.appendChild(makeSVG("rect", {
+                "fill": _htOption.colorDark,
+                "width": "1",
+                "height": "1",
+                "id": "template"
+            }));
 
-            for (var row = 0; row < nCount; row++) {
-                for (var col = 0; col < nCount; col++) {
+            for (let row = 0; row < nCount; row++) {
+                for (let col = 0; col < nCount; col++) {
                     if (oQRCode.isDark(row, col)) {
-                        var child = makeSVG("use", { "x": String(col), "y": String(row) });
+                        const child = makeSVG("use", {"x": String(col), "y": String(row)});
                         child.setAttributeNS("http://www.w3.org/1999/xlink", "href", "#template")
                         svg.appendChild(child);
                     }
@@ -286,11 +704,11 @@ var QRCode;
         return Drawing;
     })();
 
-    var useSVG = document.documentElement.tagName.toLowerCase() === "svg";
+    const useSVG = document.documentElement.tagName.toLowerCase() === "svg";
 
     // Drawing in DOM by using Table tag
     var Drawing = useSVG ? svgDrawer : !_isSupportCanvas() ? (function () {
-        var Drawing = function (el, htOption) {
+        const Drawing = function (el, htOption) {
             this._el = el;
             this._htOption = htOption;
         };
@@ -301,17 +719,17 @@ var QRCode;
          * @param {QRCode} oQRCode
          */
         Drawing.prototype.draw = function (oQRCode) {
-            var _htOption = this._htOption;
-            var _el = this._el;
-            var nCount = oQRCode.getModuleCount();
-            var nWidth = Math.floor(_htOption.width / nCount);
-            var nHeight = Math.floor(_htOption.height / nCount);
-            var aHTML = ['<table style="border:0;border-collapse:collapse;">'];
-
-            for (var row = 0; row < nCount; row++) {
+            const _htOption = this._htOption;
+            const _el = this._el;
+            const nCount = oQRCode.getModuleCount();
+            const nWidth = Math.floor(_htOption.width / nCount);
+            const nHeight = Math.floor(_htOption.height / nCount);
+            const aHTML = ['<table style="border:0;border-collapse:collapse;">'];
+
+            for (let row = 0; row < nCount; row++) {
                 aHTML.push('<tr>');
 
-                for (var col = 0; col < nCount; col++) {
+                for (let col = 0; col < nCount; col++) {
                     aHTML.push('<td style="border:0;border-collapse:collapse;padding:0;margin:0;width:' + nWidth + 'px;height:' + nHeight + 'px;background-color:' + (oQRCode.isDark(row, col) ? _htOption.colorDark : _htOption.colorLight) + ';"></td>');
                 }
 
@@ -322,9 +740,9 @@ var QRCode;
             _el.innerHTML = aHTML.join('');
 
             // Fix the margin values as real size.
-            var elTable = _el.childNodes[0];
-            var nLeftMarginTable = (_htOption.width - elTable.offsetWidth) / 2;
-            var nTopMarginTable = (_htOption.height - elTable.offsetHeight) / 2;
+            const elTable = _el.childNodes[0];
+            const nLeftMarginTable = (_htOption.width - elTable.offsetWidth) / 2;
+            const nTopMarginTable = (_htOption.height - elTable.offsetHeight) / 2;
 
             if (nLeftMarginTable > 0 && nTopMarginTable > 0) {
                 elTable.style.margin = nTopMarginTable + "px " + nLeftMarginTable + "px";
@@ -354,21 +772,21 @@ var QRCode;
          * @param {Function} fFail Occurs if it doesn't support Data URI
          */
         function _safeSetDataURI(fSuccess, fFail) {
-            var self = this;
+            const self = this;
             self._fFail = fFail;
             self._fSuccess = fSuccess;
 
             // Check it just once
             if (self._bSupportDataURI === null) {
-                var el = document.createElement("img");
-                var fOnError = function () {
+                const el = document.createElement("img");
+                const fOnError = function () {
                     self._bSupportDataURI = false;
 
                     if (self._fFail) {
                         self._fFail.call(self);
                     }
                 };
-                var fOnSuccess = function () {
+                const fOnSuccess = function () {
                     self._bSupportDataURI = true;
 
                     if (self._fSuccess) {
@@ -380,7 +798,6 @@ var QRCode;
                 el.onerror = fOnError;
                 el.onload = fOnSuccess;
                 el.src = "data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="; // the Image contains 1px data.
-                return;
             } else if (self._bSupportDataURI === true && self._fSuccess) {
                 self._fSuccess.call(self);
             } else if (self._bSupportDataURI === false && self._fFail) {
@@ -395,7 +812,7 @@ var QRCode;
          * @param {HTMLElement} el
          * @param {Object} htOption QRCode Options
          */
-        var Drawing = function (el, htOption) {
+        const Drawing = function (el, htOption) {
             this._bIsPainted = false;
             this._htOption = htOption;
             this._elCanvas = document.createElement("canvas");
@@ -418,24 +835,24 @@ var QRCode;
          * @param {QRCode} oQRCode
          */
         Drawing.prototype.draw = function (oQRCode) {
-            var _elImage = this._elImage;
-            var _oContext = this._oContext;
-            var _htOption = this._htOption;
+            const _elImage = this._elImage;
+            const _oContext = this._oContext;
+            const _htOption = this._htOption;
 
-            var nCount = oQRCode.getModuleCount();
-            var nWidth = _htOption.width / nCount;
-            var nHeight = _htOption.height / nCount;
-            var nRoundedWidth = Math.round(nWidth);
-            var nRoundedHeight = Math.round(nHeight);
+            const nCount = oQRCode.getModuleCount();
+            const nWidth = _htOption.width / nCount;
+            const nHeight = _htOption.height / nCount;
+            const nRoundedWidth = Math.round(nWidth);
+            const nRoundedHeight = Math.round(nHeight);
 
             _elImage.style.display = "none";
             this.clear();
 
-            for (var row = 0; row < nCount; row++) {
-                for (var col = 0; col < nCount; col++) {
-                    var bIsDark = oQRCode.isDark(row, col);
-                    var nLeft = col * nWidth;
-                    var nTop = row * nHeight;
+            for (let row = 0; row < nCount; row++) {
+                for (let col = 0; col < nCount; col++) {
+                    const bIsDark = oQRCode.isDark(row, col);
+                    const nLeft = col * nWidth;
+                    const nTop = row * nHeight;
                     _oContext.strokeStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight;
                     _oContext.lineWidth = 1;
                     _oContext.fillStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight;
@@ -511,11 +928,13 @@ var QRCode;
      * @return {Number} type
      */
     function _getTypeNumber(sText, nCorrectLevel) {
-        var nType = 1;
-        var length = _getUTF8Length(sText);
+        let nType = 1;
+        const length = _getUTF8Length(sText);
 
-        for (var i = 0, len = QRCodeLimitLength.length; i <= len; i++) {
-            var nLimit = 0;
+        let i = 0;
+        const len = QRCodeLimitLength.length;
+        for (; i <= len; i++) {
+            let nLimit = 0;
 
             switch (nCorrectLevel) {
                 case QRErrorCorrectLevel.L:
@@ -547,8 +966,8 @@ var QRCode;
     }
 
     function _getUTF8Length(sText) {
-        var replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a');
-        return replacedText.length + (replacedText.length != sText ? 3 : 0);
+        const replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a');
+        return replacedText.length + (replacedText.length !== sText ? 3 : 0);
     }
 
     /**
@@ -594,7 +1013,7 @@ var QRCode;
 
         // Overwrites options
         if (vOption) {
-            for (var i in vOption) {
+            for (let i in vOption) {
                 this._htOption[i] = vOption[i];
             }
         }
@@ -655,4 +1074,4 @@ var QRCode;
     QRCode.CorrectLevel = QRErrorCorrectLevel;
 })();
 
-export { QRCode };
\ No newline at end of file
+export {QRCode};
\ No newline at end of file