Enable the dot-notation ESLint rule

*Please note:* These changes were done automatically, using the `gulp lint --fix` command.

This rule is already enabled in mozilla-central, see https://searchfox.org/mozilla-central/rev/567b68b8ff4b6d607ba34a6f1926873d21a7b4d7/tools/lint/eslint/eslint-plugin-mozilla/lib/configs/recommended.js#103-104

The main advantage, besides improved consistency, of this rule is that it reduces the size of the code (by 3 bytes for each case). In the PDF.js code-base there's close to 8000 instances being fixed by the `dot-notation` ESLint rule, which end up reducing the size of even the *built* files significantly; the total size of the `gulp mozcentral` build target changes from `3 247 456` to `3 224 278` bytes, which is a *reduction* of `23 178` bytes (or ~0.7%) for a completely mechanical change.

A large number of these changes affect the (large) lookup tables used on the worker-thread, but given that they are still initialized lazily I don't *think* that the new formatting this patch introduces should undo any of the improvements from PR 6915.

Please find additional details about the ESLint rule at https://eslint.org/docs/rules/dot-notation

.eslintrc

@@ -75,6 +75,7 @@
     }],
     "consistent-return": "error",
     "curly": ["error", "all"],
+    "dot-notation": "error",
     "eqeqeq": ["error", "always"],
     "no-caller": "error",
     "no-else-return": "error",

examples/mobile-viewer/viewer.js

@@ -209,8 +209,8 @@ var PDFViewerApplication = {
         }
       }
 
-      if (!pdfTitle && info && info["Title"]) {
+      if (!pdfTitle && info && info.Title) {
-        pdfTitle = info["Title"];
+        pdfTitle = info.Title;
       }
 
       if (pdfTitle) {

gulpfile.js

@@ -171,7 +171,7 @@ function createWebpackConfig(defines, output) {
   var bundleDefines = builder.merge(defines, {
     BUNDLE_VERSION: versionInfo.version,
     BUNDLE_BUILD: versionInfo.commit,
-    TESTING: defines.TESTING || process.env["TESTING"] === "true",
+    TESTING: defines.TESTING || process.env.TESTING === "true",
   });
   var licenseHeaderLibre = fs
     .readFileSync("./src/license_header_libre.js")
@@ -414,9 +414,9 @@ function createTestSource(testsName, bot) {
     console.log();
     console.log("### Running " + testsName + " tests");
 
-    var PDF_TEST = process.env["PDF_TEST"] || "test_manifest.json";
+    var PDF_TEST = process.env.PDF_TEST || "test_manifest.json";
     var PDF_BROWSERS =
-      process.env["PDF_BROWSERS"] ||
+      process.env.PDF_BROWSERS ||
       "resources/browser_manifests/browser_manifest.json";
 
     if (!checkFile("test/" + PDF_BROWSERS)) {
@@ -467,7 +467,7 @@ function makeRef(done, bot) {
   console.log("### Creating reference images");
 
   var PDF_BROWSERS =
-    process.env["PDF_BROWSERS"] ||
+    process.env.PDF_BROWSERS ||
     "resources/browser_manifests/browser_manifest.json";
 
   if (!checkFile("test/" + PDF_BROWSERS)) {
@@ -1201,7 +1201,7 @@ function buildLib(defines, dir) {
   var bundleDefines = builder.merge(defines, {
     BUNDLE_VERSION: versionInfo.version,
     BUNDLE_BUILD: versionInfo.commit,
-    TESTING: process.env["TESTING"] === "true",
+    TESTING: process.env.TESTING === "true",
   });
   var ctx = {
     rootPath: __dirname,
@@ -1287,7 +1287,7 @@ gulp.task(
 );
 
 gulp.task("testing-pre", function (done) {
-  process.env["TESTING"] = "true";
+  process.env.TESTING = "true";
   done();
 });
 
@@ -1353,7 +1353,7 @@ gulp.task("baseline", function (done) {
   console.log();
   console.log("### Creating baseline environment");
 
-  var baselineCommit = process.env["BASELINE"];
+  var baselineCommit = process.env.BASELINE;
   if (!baselineCommit) {
     done(new Error("Missing baseline commit. Specify the BASELINE variable."));
     return;
@@ -1552,7 +1552,7 @@ gulp.task("wintersmith", function (done) {
 
 gulp.task("gh-pages-git", function (done) {
   var VERSION = getVersionJSON().version;
-  var reason = process.env["PDFJS_UPDATE_REASON"];
+  var reason = process.env.PDFJS_UPDATE_REASON;
 
   safeSpawnSync("git", ["init"], { cwd: GH_PAGES_DIR });
   safeSpawnSync("git", ["remote", "add", "origin", REPO], {
@@ -1720,7 +1720,7 @@ gulp.task(
   gulp.series("dist-pre", function (done) {
     var distPath = DIST_DIR;
     var opts = {};
-    var installPath = process.env["PDFJS_INSTALL_PATH"];
+    var installPath = process.env.PDFJS_INSTALL_PATH;
     if (installPath) {
       opts.cwd = installPath;
       distPath = path.relative(installPath, distPath);
@@ -1738,7 +1738,7 @@ gulp.task(
     console.log();
     console.log("### Committing changes");
 
-    var reason = process.env["PDFJS_UPDATE_REASON"];
+    var reason = process.env.PDFJS_UPDATE_REASON;
     // Attempt to work-around the broken link, see https://github.com/mozilla/pdf.js/issues/10391
     if (typeof reason === "string") {
       var reasonParts = /^(See )(mozilla\/pdf\.js)@tags\/(v\d+\.\d+\.\d+)\s*$/.exec(

src/core/ccitt.js

@@ -473,17 +473,17 @@ const CCITTFaxDecoder = (function CCITTFaxDecoder() {
     this.source = source;
     this.eof = false;
 
-    this.encoding = options["K"] || 0;
+    this.encoding = options.K || 0;
-    this.eoline = options["EndOfLine"] || false;
+    this.eoline = options.EndOfLine || false;
-    this.byteAlign = options["EncodedByteAlign"] || false;
+    this.byteAlign = options.EncodedByteAlign || false;
-    this.columns = options["Columns"] || 1728;
+    this.columns = options.Columns || 1728;
-    this.rows = options["Rows"] || 0;
+    this.rows = options.Rows || 0;
-    let eoblock = options["EndOfBlock"];
+    let eoblock = options.EndOfBlock;
     if (eoblock === null || eoblock === undefined) {
       eoblock = true;
     }
     this.eoblock = eoblock;
-    this.black = options["BlackIs1"] || false;
+    this.black = options.BlackIs1 || false;
 
     this.codingLine = new Uint32Array(this.columns + 1);
     this.refLine = new Uint32Array(this.columns + 2);

src/core/document.js

@@ -725,10 +725,10 @@ class PDFDocument {
             continue;
           }
 
-          if (!docInfo["Custom"]) {
+          if (!docInfo.Custom) {
-            docInfo["Custom"] = Object.create(null);
+            docInfo.Custom = Object.create(null);
           }
-          docInfo["Custom"][key] = customValue;
+          docInfo.Custom[key] = customValue;
         }
       }
     }

src/core/evaluator.js

@@ -3533,57 +3533,57 @@ var EvaluatorPreprocessor = (function EvaluatorPreprocessorClosure() {
   // If variableArgs === false: exactly `numArgs` expected
   var getOPMap = getLookupTableFactory(function (t) {
     // Graphic state
-    t["w"] = { id: OPS.setLineWidth, numArgs: 1, variableArgs: false };
+    t.w = { id: OPS.setLineWidth, numArgs: 1, variableArgs: false };
-    t["J"] = { id: OPS.setLineCap, numArgs: 1, variableArgs: false };
+    t.J = { id: OPS.setLineCap, numArgs: 1, variableArgs: false };
-    t["j"] = { id: OPS.setLineJoin, numArgs: 1, variableArgs: false };
+    t.j = { id: OPS.setLineJoin, numArgs: 1, variableArgs: false };
-    t["M"] = { id: OPS.setMiterLimit, numArgs: 1, variableArgs: false };
+    t.M = { id: OPS.setMiterLimit, numArgs: 1, variableArgs: false };
-    t["d"] = { id: OPS.setDash, numArgs: 2, variableArgs: false };
+    t.d = { id: OPS.setDash, numArgs: 2, variableArgs: false };
-    t["ri"] = { id: OPS.setRenderingIntent, numArgs: 1, variableArgs: false };
+    t.ri = { id: OPS.setRenderingIntent, numArgs: 1, variableArgs: false };
-    t["i"] = { id: OPS.setFlatness, numArgs: 1, variableArgs: false };
+    t.i = { id: OPS.setFlatness, numArgs: 1, variableArgs: false };
-    t["gs"] = { id: OPS.setGState, numArgs: 1, variableArgs: false };
+    t.gs = { id: OPS.setGState, numArgs: 1, variableArgs: false };
-    t["q"] = { id: OPS.save, numArgs: 0, variableArgs: false };
+    t.q = { id: OPS.save, numArgs: 0, variableArgs: false };
-    t["Q"] = { id: OPS.restore, numArgs: 0, variableArgs: false };
+    t.Q = { id: OPS.restore, numArgs: 0, variableArgs: false };
-    t["cm"] = { id: OPS.transform, numArgs: 6, variableArgs: false };
+    t.cm = { id: OPS.transform, numArgs: 6, variableArgs: false };
 
     // Path
-    t["m"] = { id: OPS.moveTo, numArgs: 2, variableArgs: false };
+    t.m = { id: OPS.moveTo, numArgs: 2, variableArgs: false };
-    t["l"] = { id: OPS.lineTo, numArgs: 2, variableArgs: false };
+    t.l = { id: OPS.lineTo, numArgs: 2, variableArgs: false };
-    t["c"] = { id: OPS.curveTo, numArgs: 6, variableArgs: false };
+    t.c = { id: OPS.curveTo, numArgs: 6, variableArgs: false };
-    t["v"] = { id: OPS.curveTo2, numArgs: 4, variableArgs: false };
+    t.v = { id: OPS.curveTo2, numArgs: 4, variableArgs: false };
-    t["y"] = { id: OPS.curveTo3, numArgs: 4, variableArgs: false };
+    t.y = { id: OPS.curveTo3, numArgs: 4, variableArgs: false };
-    t["h"] = { id: OPS.closePath, numArgs: 0, variableArgs: false };
+    t.h = { id: OPS.closePath, numArgs: 0, variableArgs: false };
-    t["re"] = { id: OPS.rectangle, numArgs: 4, variableArgs: false };
+    t.re = { id: OPS.rectangle, numArgs: 4, variableArgs: false };
-    t["S"] = { id: OPS.stroke, numArgs: 0, variableArgs: false };
+    t.S = { id: OPS.stroke, numArgs: 0, variableArgs: false };
-    t["s"] = { id: OPS.closeStroke, numArgs: 0, variableArgs: false };
+    t.s = { id: OPS.closeStroke, numArgs: 0, variableArgs: false };
-    t["f"] = { id: OPS.fill, numArgs: 0, variableArgs: false };
+    t.f = { id: OPS.fill, numArgs: 0, variableArgs: false };
-    t["F"] = { id: OPS.fill, numArgs: 0, variableArgs: false };
+    t.F = { id: OPS.fill, numArgs: 0, variableArgs: false };
     t["f*"] = { id: OPS.eoFill, numArgs: 0, variableArgs: false };
-    t["B"] = { id: OPS.fillStroke, numArgs: 0, variableArgs: false };
+    t.B = { id: OPS.fillStroke, numArgs: 0, variableArgs: false };
     t["B*"] = { id: OPS.eoFillStroke, numArgs: 0, variableArgs: false };
-    t["b"] = { id: OPS.closeFillStroke, numArgs: 0, variableArgs: false };
+    t.b = { id: OPS.closeFillStroke, numArgs: 0, variableArgs: false };
     t["b*"] = { id: OPS.closeEOFillStroke, numArgs: 0, variableArgs: false };
-    t["n"] = { id: OPS.endPath, numArgs: 0, variableArgs: false };
+    t.n = { id: OPS.endPath, numArgs: 0, variableArgs: false };
 
     // Clipping
-    t["W"] = { id: OPS.clip, numArgs: 0, variableArgs: false };
+    t.W = { id: OPS.clip, numArgs: 0, variableArgs: false };
     t["W*"] = { id: OPS.eoClip, numArgs: 0, variableArgs: false };
 
     // Text
-    t["BT"] = { id: OPS.beginText, numArgs: 0, variableArgs: false };
+    t.BT = { id: OPS.beginText, numArgs: 0, variableArgs: false };
-    t["ET"] = { id: OPS.endText, numArgs: 0, variableArgs: false };
+    t.ET = { id: OPS.endText, numArgs: 0, variableArgs: false };
-    t["Tc"] = { id: OPS.setCharSpacing, numArgs: 1, variableArgs: false };
+    t.Tc = { id: OPS.setCharSpacing, numArgs: 1, variableArgs: false };
-    t["Tw"] = { id: OPS.setWordSpacing, numArgs: 1, variableArgs: false };
+    t.Tw = { id: OPS.setWordSpacing, numArgs: 1, variableArgs: false };
-    t["Tz"] = { id: OPS.setHScale, numArgs: 1, variableArgs: false };
+    t.Tz = { id: OPS.setHScale, numArgs: 1, variableArgs: false };
-    t["TL"] = { id: OPS.setLeading, numArgs: 1, variableArgs: false };
+    t.TL = { id: OPS.setLeading, numArgs: 1, variableArgs: false };
-    t["Tf"] = { id: OPS.setFont, numArgs: 2, variableArgs: false };
+    t.Tf = { id: OPS.setFont, numArgs: 2, variableArgs: false };
-    t["Tr"] = { id: OPS.setTextRenderingMode, numArgs: 1, variableArgs: false };
+    t.Tr = { id: OPS.setTextRenderingMode, numArgs: 1, variableArgs: false };
-    t["Ts"] = { id: OPS.setTextRise, numArgs: 1, variableArgs: false };
+    t.Ts = { id: OPS.setTextRise, numArgs: 1, variableArgs: false };
-    t["Td"] = { id: OPS.moveText, numArgs: 2, variableArgs: false };
+    t.Td = { id: OPS.moveText, numArgs: 2, variableArgs: false };
-    t["TD"] = { id: OPS.setLeadingMoveText, numArgs: 2, variableArgs: false };
+    t.TD = { id: OPS.setLeadingMoveText, numArgs: 2, variableArgs: false };
-    t["Tm"] = { id: OPS.setTextMatrix, numArgs: 6, variableArgs: false };
+    t.Tm = { id: OPS.setTextMatrix, numArgs: 6, variableArgs: false };
     t["T*"] = { id: OPS.nextLine, numArgs: 0, variableArgs: false };
-    t["Tj"] = { id: OPS.showText, numArgs: 1, variableArgs: false };
+    t.Tj = { id: OPS.showText, numArgs: 1, variableArgs: false };
-    t["TJ"] = { id: OPS.showSpacedText, numArgs: 1, variableArgs: false };
+    t.TJ = { id: OPS.showSpacedText, numArgs: 1, variableArgs: false };
     t["'"] = { id: OPS.nextLineShowText, numArgs: 1, variableArgs: false };
     t['"'] = {
       id: OPS.nextLineSetSpacingShowText,
@@ -3592,62 +3592,62 @@ var EvaluatorPreprocessor = (function EvaluatorPreprocessorClosure() {
     };
 
     // Type3 fonts
-    t["d0"] = { id: OPS.setCharWidth, numArgs: 2, variableArgs: false };
+    t.d0 = { id: OPS.setCharWidth, numArgs: 2, variableArgs: false };
-    t["d1"] = {
+    t.d1 = {
       id: OPS.setCharWidthAndBounds,
       numArgs: 6,
       variableArgs: false,
     };
 
     // Color
-    t["CS"] = { id: OPS.setStrokeColorSpace, numArgs: 1, variableArgs: false };
+    t.CS = { id: OPS.setStrokeColorSpace, numArgs: 1, variableArgs: false };
-    t["cs"] = { id: OPS.setFillColorSpace, numArgs: 1, variableArgs: false };
+    t.cs = { id: OPS.setFillColorSpace, numArgs: 1, variableArgs: false };
-    t["SC"] = { id: OPS.setStrokeColor, numArgs: 4, variableArgs: true };
+    t.SC = { id: OPS.setStrokeColor, numArgs: 4, variableArgs: true };
-    t["SCN"] = { id: OPS.setStrokeColorN, numArgs: 33, variableArgs: true };
+    t.SCN = { id: OPS.setStrokeColorN, numArgs: 33, variableArgs: true };
-    t["sc"] = { id: OPS.setFillColor, numArgs: 4, variableArgs: true };
+    t.sc = { id: OPS.setFillColor, numArgs: 4, variableArgs: true };
-    t["scn"] = { id: OPS.setFillColorN, numArgs: 33, variableArgs: true };
+    t.scn = { id: OPS.setFillColorN, numArgs: 33, variableArgs: true };
-    t["G"] = { id: OPS.setStrokeGray, numArgs: 1, variableArgs: false };
+    t.G = { id: OPS.setStrokeGray, numArgs: 1, variableArgs: false };
-    t["g"] = { id: OPS.setFillGray, numArgs: 1, variableArgs: false };
+    t.g = { id: OPS.setFillGray, numArgs: 1, variableArgs: false };
-    t["RG"] = { id: OPS.setStrokeRGBColor, numArgs: 3, variableArgs: false };
+    t.RG = { id: OPS.setStrokeRGBColor, numArgs: 3, variableArgs: false };
-    t["rg"] = { id: OPS.setFillRGBColor, numArgs: 3, variableArgs: false };
+    t.rg = { id: OPS.setFillRGBColor, numArgs: 3, variableArgs: false };
-    t["K"] = { id: OPS.setStrokeCMYKColor, numArgs: 4, variableArgs: false };
+    t.K = { id: OPS.setStrokeCMYKColor, numArgs: 4, variableArgs: false };
-    t["k"] = { id: OPS.setFillCMYKColor, numArgs: 4, variableArgs: false };
+    t.k = { id: OPS.setFillCMYKColor, numArgs: 4, variableArgs: false };
 
     // Shading
-    t["sh"] = { id: OPS.shadingFill, numArgs: 1, variableArgs: false };
+    t.sh = { id: OPS.shadingFill, numArgs: 1, variableArgs: false };
 
     // Images
-    t["BI"] = { id: OPS.beginInlineImage, numArgs: 0, variableArgs: false };
+    t.BI = { id: OPS.beginInlineImage, numArgs: 0, variableArgs: false };
-    t["ID"] = { id: OPS.beginImageData, numArgs: 0, variableArgs: false };
+    t.ID = { id: OPS.beginImageData, numArgs: 0, variableArgs: false };
-    t["EI"] = { id: OPS.endInlineImage, numArgs: 1, variableArgs: false };
+    t.EI = { id: OPS.endInlineImage, numArgs: 1, variableArgs: false };
 
     // XObjects
-    t["Do"] = { id: OPS.paintXObject, numArgs: 1, variableArgs: false };
+    t.Do = { id: OPS.paintXObject, numArgs: 1, variableArgs: false };
-    t["MP"] = { id: OPS.markPoint, numArgs: 1, variableArgs: false };
+    t.MP = { id: OPS.markPoint, numArgs: 1, variableArgs: false };
-    t["DP"] = { id: OPS.markPointProps, numArgs: 2, variableArgs: false };
+    t.DP = { id: OPS.markPointProps, numArgs: 2, variableArgs: false };
-    t["BMC"] = { id: OPS.beginMarkedContent, numArgs: 1, variableArgs: false };
+    t.BMC = { id: OPS.beginMarkedContent, numArgs: 1, variableArgs: false };
-    t["BDC"] = {
+    t.BDC = {
       id: OPS.beginMarkedContentProps,
       numArgs: 2,
       variableArgs: false,
     };
-    t["EMC"] = { id: OPS.endMarkedContent, numArgs: 0, variableArgs: false };
+    t.EMC = { id: OPS.endMarkedContent, numArgs: 0, variableArgs: false };
 
     // Compatibility
-    t["BX"] = { id: OPS.beginCompat, numArgs: 0, variableArgs: false };
+    t.BX = { id: OPS.beginCompat, numArgs: 0, variableArgs: false };
-    t["EX"] = { id: OPS.endCompat, numArgs: 0, variableArgs: false };
+    t.EX = { id: OPS.endCompat, numArgs: 0, variableArgs: false };
 
     // (reserved partial commands for the lexer)
-    t["BM"] = null;
+    t.BM = null;
-    t["BD"] = null;
+    t.BD = null;
-    t["true"] = null;
+    t.true = null;
-    t["fa"] = null;
+    t.fa = null;
-    t["fal"] = null;
+    t.fal = null;
-    t["fals"] = null;
+    t.fals = null;
-    t["false"] = null;
+    t.false = null;
-    t["nu"] = null;
+    t.nu = null;
-    t["nul"] = null;
+    t.nul = null;
-    t["null"] = null;
+    t.null = null;
   });
 
   const MAX_INVALID_PATH_OPS = 20;

src/core/fonts.js

@@ -1447,13 +1447,13 @@ var Font = (function FontClosure() {
       function readTables(file, numTables) {
         const tables = Object.create(null);
         tables["OS/2"] = null;
-        tables["cmap"] = null;
+        tables.cmap = null;
-        tables["head"] = null;
+        tables.head = null;
-        tables["hhea"] = null;
+        tables.hhea = null;
-        tables["hmtx"] = null;
+        tables.hmtx = null;
-        tables["maxp"] = null;
+        tables.maxp = null;
-        tables["name"] = null;
+        tables.name = null;
-        tables["post"] = null;
+        tables.post = null;
 
         for (let i = 0; i < numTables; i++) {
           const table = readTableEntry(file);
@@ -1548,12 +1548,12 @@ var Font = (function FontClosure() {
           const potentialHeader = readOpenTypeHeader(ttc);
           const potentialTables = readTables(ttc, potentialHeader.numTables);
 
-          if (!potentialTables["name"]) {
+          if (!potentialTables.name) {
             throw new FormatError(
               'TrueType Collection font must contain a "name" table.'
             );
           }
-          const nameTable = readNameTable(potentialTables["name"]);
+          const nameTable = readNameTable(potentialTables.name);
 
           for (let j = 0, jj = nameTable.length; j < jj; j++) {
             for (let k = 0, kk = nameTable[j].length; k < kk; k++) {
@@ -2591,10 +2591,10 @@ var Font = (function FontClosure() {
         // OpenType font (skip composite fonts with non-default glyph mapping).
         if (
           (header.version === "OTTO" && !isComposite) ||
-          !tables["head"] ||
+          !tables.head ||
-          !tables["hhea"] ||
+          !tables.hhea ||
-          !tables["maxp"] ||
+          !tables.maxp ||
-          !tables["post"]
+          !tables.post
         ) {
           // No major tables: throwing everything at `CFFFont`.
           cffFile = new Stream(tables["CFF "].data);
@@ -2605,20 +2605,20 @@ var Font = (function FontClosure() {
           return this.convert(name, cff, properties);
         }
 
-        delete tables["glyf"];
+        delete tables.glyf;
-        delete tables["loca"];
+        delete tables.loca;
-        delete tables["fpgm"];
+        delete tables.fpgm;
-        delete tables["prep"];
+        delete tables.prep;
         delete tables["cvt "];
         this.isOpenType = true;
       } else {
-        if (!tables["loca"]) {
+        if (!tables.loca) {
           throw new FormatError('Required "loca" table is not found');
         }
-        if (!tables["glyf"]) {
+        if (!tables.glyf) {
           warn('Required "glyf" table is not found -- trying to recover.');
           // Note: We use `sanitizeGlyphLocations` to add dummy glyf data below.
-          tables["glyf"] = {
+          tables.glyf = {
             tag: "glyf",
             data: new Uint8Array(0),
           };
@@ -2626,11 +2626,11 @@ var Font = (function FontClosure() {
         this.isOpenType = false;
       }
 
-      if (!tables["maxp"]) {
+      if (!tables.maxp) {
         throw new FormatError('Required "maxp" table is not found');
       }
 
-      font.pos = (font.start || 0) + tables["maxp"].offset;
+      font.pos = (font.start || 0) + tables.maxp.offset;
       var version = font.getInt32();
       const numGlyphs = font.getUint16();
       // Glyph 0 is duplicated and appended.
@@ -2643,14 +2643,14 @@ var Font = (function FontClosure() {
       }
       var maxFunctionDefs = 0;
       var maxSizeOfInstructions = 0;
-      if (version >= 0x00010000 && tables["maxp"].length >= 22) {
+      if (version >= 0x00010000 && tables.maxp.length >= 22) {
         // maxZones can be invalid
         font.pos += 8;
         var maxZones = font.getUint16();
         if (maxZones > 2) {
           // reset to 2 if font has invalid maxZones
-          tables["maxp"].data[14] = 0;
+          tables.maxp.data[14] = 0;
-          tables["maxp"].data[15] = 2;
+          tables.maxp.data[15] = 2;
         }
         font.pos += 4;
         maxFunctionDefs = font.getUint16();
@@ -2658,18 +2658,18 @@ var Font = (function FontClosure() {
         maxSizeOfInstructions = font.getUint16();
       }
 
-      tables["maxp"].data[4] = numGlyphsOut >> 8;
+      tables.maxp.data[4] = numGlyphsOut >> 8;
-      tables["maxp"].data[5] = numGlyphsOut & 255;
+      tables.maxp.data[5] = numGlyphsOut & 255;
 
       var hintsValid = sanitizeTTPrograms(
-        tables["fpgm"],
+        tables.fpgm,
-        tables["prep"],
+        tables.prep,
         tables["cvt "],
         maxFunctionDefs
       );
       if (!hintsValid) {
-        delete tables["fpgm"];
+        delete tables.fpgm;
-        delete tables["prep"];
+        delete tables.prep;
         delete tables["cvt "];
       }
 
@@ -2677,31 +2677,27 @@ var Font = (function FontClosure() {
       // sidebearings information for numGlyphs in the maxp table
       sanitizeMetrics(
         font,
-        tables["hhea"],
+        tables.hhea,
-        tables["hmtx"],
+        tables.hmtx,
         numGlyphsOut,
         dupFirstEntry
       );
 
-      if (!tables["head"]) {
+      if (!tables.head) {
         throw new FormatError('Required "head" table is not found');
       }
 
-      sanitizeHead(
+      sanitizeHead(tables.head, numGlyphs, isTrueType ? tables.loca.length : 0);
-        tables["head"],
-        numGlyphs,
-        isTrueType ? tables["loca"].length : 0
-      );
 
       var missingGlyphs = Object.create(null);
       if (isTrueType) {
         var isGlyphLocationsLong = int16(
-          tables["head"].data[50],
+          tables.head.data[50],
-          tables["head"].data[51]
+          tables.head.data[51]
         );
         var glyphsInfo = sanitizeGlyphLocations(
-          tables["loca"],
+          tables.loca,
-          tables["glyf"],
+          tables.glyf,
           numGlyphs,
           isGlyphLocationsLong,
           hintsValid,
@@ -2712,30 +2708,30 @@ var Font = (function FontClosure() {
 
         // Some fonts have incorrect maxSizeOfInstructions values, so we use
         // the computed value instead.
-        if (version >= 0x00010000 && tables["maxp"].length >= 22) {
+        if (version >= 0x00010000 && tables.maxp.length >= 22) {
-          tables["maxp"].data[26] = glyphsInfo.maxSizeOfInstructions >> 8;
+          tables.maxp.data[26] = glyphsInfo.maxSizeOfInstructions >> 8;
-          tables["maxp"].data[27] = glyphsInfo.maxSizeOfInstructions & 255;
+          tables.maxp.data[27] = glyphsInfo.maxSizeOfInstructions & 255;
         }
       }
-      if (!tables["hhea"]) {
+      if (!tables.hhea) {
         throw new FormatError('Required "hhea" table is not found');
       }
 
       // Sanitizer reduces the glyph advanceWidth to the maxAdvanceWidth
       // Sometimes it's 0. That needs to be fixed
-      if (tables["hhea"].data[10] === 0 && tables["hhea"].data[11] === 0) {
+      if (tables.hhea.data[10] === 0 && tables.hhea.data[11] === 0) {
-        tables["hhea"].data[10] = 0xff;
+        tables.hhea.data[10] = 0xff;
-        tables["hhea"].data[11] = 0xff;
+        tables.hhea.data[11] = 0xff;
       }
 
       // Extract some more font properties from the OpenType head and
       // hhea tables; yMin and descent value are always negative.
       var metricsOverride = {
-        unitsPerEm: int16(tables["head"].data[18], tables["head"].data[19]),
+        unitsPerEm: int16(tables.head.data[18], tables.head.data[19]),
-        yMax: int16(tables["head"].data[42], tables["head"].data[43]),
+        yMax: int16(tables.head.data[42], tables.head.data[43]),
-        yMin: signedInt16(tables["head"].data[38], tables["head"].data[39]),
+        yMin: signedInt16(tables.head.data[38], tables.head.data[39]),
-        ascent: int16(tables["hhea"].data[4], tables["hhea"].data[5]),
+        ascent: int16(tables.hhea.data[4], tables.hhea.data[5]),
-        descent: signedInt16(tables["hhea"].data[6], tables["hhea"].data[7]),
+        descent: signedInt16(tables.hhea.data[6], tables.hhea.data[7]),
       };
 
       // PDF FontDescriptor metrics lie -- using data from actual font.
@@ -2743,12 +2739,12 @@ var Font = (function FontClosure() {
       this.descent = metricsOverride.descent / metricsOverride.unitsPerEm;
 
       // The 'post' table has glyphs names.
-      if (tables["post"]) {
+      if (tables.post) {
-        readPostScriptTable(tables["post"], properties, numGlyphs);
+        readPostScriptTable(tables.post, properties, numGlyphs);
       }
 
       // The original 'post' table is not needed, replace it.
-      tables["post"] = {
+      tables.post = {
         tag: "post",
         data: createPostTable(properties),
       };
@@ -2783,7 +2779,7 @@ var Font = (function FontClosure() {
         // Most of the following logic in this code branch is based on the
         // 9.6.6.4 of the PDF spec.
         var cmapTable = readCmapTable(
-          tables["cmap"],
+          tables.cmap,
           font,
           this.isSymbolicFont,
           properties.hasEncoding
@@ -2916,7 +2912,7 @@ var Font = (function FontClosure() {
       // Converting glyphs and ids into font's cmap table
       var newMapping = adjustMapping(charCodeToGlyphId, hasGlyph, glyphZeroId);
       this.toFontChar = newMapping.toFontChar;
-      tables["cmap"] = {
+      tables.cmap = {
         tag: "cmap",
         data: createCmapTable(newMapping.charCodeToGlyphId, numGlyphsOut),
       };
@@ -2951,15 +2947,15 @@ var Font = (function FontClosure() {
       }
 
       // Re-creating 'name' table
-      if (!tables["name"]) {
+      if (!tables.name) {
-        tables["name"] = {
+        tables.name = {
           tag: "name",
           data: createNameTable(this.name),
         };
       } else {
         // ... using existing 'name' table as prototype
-        var namePrototype = readNameTable(tables["name"]);
+        var namePrototype = readNameTable(tables.name);
-        tables["name"].data = createNameTable(name, namePrototype);
+        tables.name.data = createNameTable(name, namePrototype);
       }
 
       var builder = new OpenTypeFileBuilder(header.version);

src/core/jpx.js

@@ -1188,13 +1188,13 @@ var JpxImage = (function JpxImageClosure() {
         var codeblockIncluded = false;
         var firstTimeInclusion = false;
         var valueReady;
-        if (codeblock["included"] !== undefined) {
+        if (codeblock.included !== undefined) {
           codeblockIncluded = !!readBits(1);
         } else {
           // reading inclusion tree
           precinct = codeblock.precinct;
           var inclusionTree, zeroBitPlanesTree;
-          if (precinct["inclusionTree"] !== undefined) {
+          if (precinct.inclusionTree !== undefined) {
             inclusionTree = precinct.inclusionTree;
           } else {
             // building inclusion and zero bit-planes trees
@@ -1264,7 +1264,7 @@ var JpxImage = (function JpxImageClosure() {
       while (queue.length > 0) {
         var packetItem = queue.shift();
         codeblock = packetItem.codeblock;
-        if (codeblock["data"] === undefined) {
+        if (codeblock.data === undefined) {
           codeblock.data = [];
         }
         codeblock.data.push({
@@ -1302,7 +1302,7 @@ var JpxImage = (function JpxImageClosure() {
       if (blockWidth === 0 || blockHeight === 0) {
         continue;
       }
-      if (codeblock["data"] === undefined) {
+      if (codeblock.data === undefined) {
         continue;
       }
 

src/core/standard_fonts.js

@@ -21,11 +21,11 @@ import { getLookupTableFactory } from "./core_utils.js";
  * fonts and their acronyms.
  */
 const getStdFontMap = getLookupTableFactory(function (t) {
-  t["ArialNarrow"] = "Helvetica";
+  t.ArialNarrow = "Helvetica";
   t["ArialNarrow-Bold"] = "Helvetica-Bold";
   t["ArialNarrow-BoldItalic"] = "Helvetica-BoldOblique";
   t["ArialNarrow-Italic"] = "Helvetica-Oblique";
-  t["ArialBlack"] = "Helvetica";
+  t.ArialBlack = "Helvetica";
   t["ArialBlack-Bold"] = "Helvetica-Bold";
   t["ArialBlack-BoldItalic"] = "Helvetica-BoldOblique";
   t["ArialBlack-Italic"] = "Helvetica-Oblique";
@@ -33,26 +33,26 @@ const getStdFontMap = getLookupTableFactory(function (t) {
   t["Arial-Black-Bold"] = "Helvetica-Bold";
   t["Arial-Black-BoldItalic"] = "Helvetica-BoldOblique";
   t["Arial-Black-Italic"] = "Helvetica-Oblique";
-  t["Arial"] = "Helvetica";
+  t.Arial = "Helvetica";
   t["Arial-Bold"] = "Helvetica-Bold";
   t["Arial-BoldItalic"] = "Helvetica-BoldOblique";
   t["Arial-Italic"] = "Helvetica-Oblique";
   t["Arial-BoldItalicMT"] = "Helvetica-BoldOblique";
   t["Arial-BoldMT"] = "Helvetica-Bold";
   t["Arial-ItalicMT"] = "Helvetica-Oblique";
-  t["ArialMT"] = "Helvetica";
+  t.ArialMT = "Helvetica";
   t["Courier-Bold"] = "Courier-Bold";
   t["Courier-BoldItalic"] = "Courier-BoldOblique";
   t["Courier-Italic"] = "Courier-Oblique";
-  t["CourierNew"] = "Courier";
+  t.CourierNew = "Courier";
   t["CourierNew-Bold"] = "Courier-Bold";
   t["CourierNew-BoldItalic"] = "Courier-BoldOblique";
   t["CourierNew-Italic"] = "Courier-Oblique";
   t["CourierNewPS-BoldItalicMT"] = "Courier-BoldOblique";
   t["CourierNewPS-BoldMT"] = "Courier-Bold";
   t["CourierNewPS-ItalicMT"] = "Courier-Oblique";
-  t["CourierNewPSMT"] = "Courier";
+  t.CourierNewPSMT = "Courier";
-  t["Helvetica"] = "Helvetica";
+  t.Helvetica = "Helvetica";
   t["Helvetica-Bold"] = "Helvetica-Bold";
   t["Helvetica-BoldItalic"] = "Helvetica-BoldOblique";
   t["Helvetica-BoldOblique"] = "Helvetica-BoldOblique";
@@ -61,18 +61,18 @@ const getStdFontMap = getLookupTableFactory(function (t) {
   t["Symbol-Bold"] = "Symbol";
   t["Symbol-BoldItalic"] = "Symbol";
   t["Symbol-Italic"] = "Symbol";
-  t["TimesNewRoman"] = "Times-Roman";
+  t.TimesNewRoman = "Times-Roman";
   t["TimesNewRoman-Bold"] = "Times-Bold";
   t["TimesNewRoman-BoldItalic"] = "Times-BoldItalic";
   t["TimesNewRoman-Italic"] = "Times-Italic";
-  t["TimesNewRomanPS"] = "Times-Roman";
+  t.TimesNewRomanPS = "Times-Roman";
   t["TimesNewRomanPS-Bold"] = "Times-Bold";
   t["TimesNewRomanPS-BoldItalic"] = "Times-BoldItalic";
   t["TimesNewRomanPS-BoldItalicMT"] = "Times-BoldItalic";
   t["TimesNewRomanPS-BoldMT"] = "Times-Bold";
   t["TimesNewRomanPS-Italic"] = "Times-Italic";
   t["TimesNewRomanPS-ItalicMT"] = "Times-Italic";
-  t["TimesNewRomanPSMT"] = "Times-Roman";
+  t.TimesNewRomanPSMT = "Times-Roman";
   t["TimesNewRomanPSMT-Bold"] = "Times-Bold";
   t["TimesNewRomanPSMT-BoldItalic"] = "Times-BoldItalic";
   t["TimesNewRomanPSMT-Italic"] = "Times-Italic";
@@ -83,19 +83,19 @@ const getStdFontMap = getLookupTableFactory(function (t) {
  * a standard fonts without glyph data.
  */
 const getNonStdFontMap = getLookupTableFactory(function (t) {
-  t["Calibri"] = "Helvetica";
+  t.Calibri = "Helvetica";
   t["Calibri-Bold"] = "Helvetica-Bold";
   t["Calibri-BoldItalic"] = "Helvetica-BoldOblique";
   t["Calibri-Italic"] = "Helvetica-Oblique";
-  t["CenturyGothic"] = "Helvetica";
+  t.CenturyGothic = "Helvetica";
   t["CenturyGothic-Bold"] = "Helvetica-Bold";
   t["CenturyGothic-BoldItalic"] = "Helvetica-BoldOblique";
   t["CenturyGothic-Italic"] = "Helvetica-Oblique";
-  t["ComicSansMS"] = "Comic Sans MS";
+  t.ComicSansMS = "Comic Sans MS";
   t["ComicSansMS-Bold"] = "Comic Sans MS-Bold";
   t["ComicSansMS-BoldItalic"] = "Comic Sans MS-BoldItalic";
   t["ComicSansMS-Italic"] = "Comic Sans MS-Italic";
-  t["LucidaConsole"] = "Courier";
+  t.LucidaConsole = "Courier";
   t["LucidaConsole-Bold"] = "Courier-Bold";
   t["LucidaConsole-BoldItalic"] = "Courier-BoldOblique";
   t["LucidaConsole-Italic"] = "Courier-Oblique";
@@ -116,103 +116,103 @@ const getNonStdFontMap = getLookupTableFactory(function (t) {
   t["MS-PMincho-Bold"] = "MS PMincho-Bold";
   t["MS-PMincho-BoldItalic"] = "MS PMincho-BoldItalic";
   t["MS-PMincho-Italic"] = "MS PMincho-Italic";
-  t["NuptialScript"] = "Times-Italic";
+  t.NuptialScript = "Times-Italic";
-  t["SegoeUISymbol"] = "Helvetica";
+  t.SegoeUISymbol = "Helvetica";
-  t["Wingdings"] = "ZapfDingbats";
+  t.Wingdings = "ZapfDingbats";
   t["Wingdings-Regular"] = "ZapfDingbats";
 });
 
 const getSerifFonts = getLookupTableFactory(function (t) {
   t["Adobe Jenson"] = true;
   t["Adobe Text"] = true;
-  t["Albertus"] = true;
+  t.Albertus = true;
-  t["Aldus"] = true;
+  t.Aldus = true;
-  t["Alexandria"] = true;
+  t.Alexandria = true;
-  t["Algerian"] = true;
+  t.Algerian = true;
   t["American Typewriter"] = true;
-  t["Antiqua"] = true;
+  t.Antiqua = true;
-  t["Apex"] = true;
+  t.Apex = true;
-  t["Arno"] = true;
+  t.Arno = true;
-  t["Aster"] = true;
+  t.Aster = true;
-  t["Aurora"] = true;
+  t.Aurora = true;
-  t["Baskerville"] = true;
+  t.Baskerville = true;
-  t["Bell"] = true;
+  t.Bell = true;
-  t["Bembo"] = true;
+  t.Bembo = true;
   t["Bembo Schoolbook"] = true;
-  t["Benguiat"] = true;
+  t.Benguiat = true;
   t["Berkeley Old Style"] = true;
   t["Bernhard Modern"] = true;
   t["Berthold City"] = true;
-  t["Bodoni"] = true;
+  t.Bodoni = true;
   t["Bauer Bodoni"] = true;
   t["Book Antiqua"] = true;
-  t["Bookman"] = true;
+  t.Bookman = true;
   t["Bordeaux Roman"] = true;
   t["Californian FB"] = true;
-  t["Calisto"] = true;
+  t.Calisto = true;
-  t["Calvert"] = true;
+  t.Calvert = true;
-  t["Capitals"] = true;
+  t.Capitals = true;
-  t["Cambria"] = true;
+  t.Cambria = true;
-  t["Cartier"] = true;
+  t.Cartier = true;
-  t["Caslon"] = true;
+  t.Caslon = true;
-  t["Catull"] = true;
+  t.Catull = true;
-  t["Centaur"] = true;
+  t.Centaur = true;
   t["Century Old Style"] = true;
   t["Century Schoolbook"] = true;
-  t["Chaparral"] = true;
+  t.Chaparral = true;
   t["Charis SIL"] = true;
-  t["Cheltenham"] = true;
+  t.Cheltenham = true;
   t["Cholla Slab"] = true;
-  t["Clarendon"] = true;
+  t.Clarendon = true;
-  t["Clearface"] = true;
+  t.Clearface = true;
-  t["Cochin"] = true;
+  t.Cochin = true;
-  t["Colonna"] = true;
+  t.Colonna = true;
   t["Computer Modern"] = true;
   t["Concrete Roman"] = true;
-  t["Constantia"] = true;
+  t.Constantia = true;
   t["Cooper Black"] = true;
-  t["Corona"] = true;
+  t.Corona = true;
-  t["Ecotype"] = true;
+  t.Ecotype = true;
-  t["Egyptienne"] = true;
+  t.Egyptienne = true;
-  t["Elephant"] = true;
+  t.Elephant = true;
-  t["Excelsior"] = true;
+  t.Excelsior = true;
-  t["Fairfield"] = true;
+  t.Fairfield = true;
   t["FF Scala"] = true;
-  t["Folkard"] = true;
+  t.Folkard = true;
-  t["Footlight"] = true;
+  t.Footlight = true;
-  t["FreeSerif"] = true;
+  t.FreeSerif = true;
   t["Friz Quadrata"] = true;
-  t["Garamond"] = true;
+  t.Garamond = true;
-  t["Gentium"] = true;
+  t.Gentium = true;
-  t["Georgia"] = true;
+  t.Georgia = true;
-  t["Gloucester"] = true;
+  t.Gloucester = true;
   t["Goudy Old Style"] = true;
   t["Goudy Schoolbook"] = true;
   t["Goudy Pro Font"] = true;
-  t["Granjon"] = true;
+  t.Granjon = true;
   t["Guardian Egyptian"] = true;
-  t["Heather"] = true;
+  t.Heather = true;
-  t["Hercules"] = true;
+  t.Hercules = true;
   t["High Tower Text"] = true;
-  t["Hiroshige"] = true;
+  t.Hiroshige = true;
   t["Hoefler Text"] = true;
   t["Humana Serif"] = true;
-  t["Imprint"] = true;
+  t.Imprint = true;
   t["Ionic No. 5"] = true;
-  t["Janson"] = true;
+  t.Janson = true;
-  t["Joanna"] = true;
+  t.Joanna = true;
-  t["Korinna"] = true;
+  t.Korinna = true;
-  t["Lexicon"] = true;
+  t.Lexicon = true;
   t["Liberation Serif"] = true;
   t["Linux Libertine"] = true;
-  t["Literaturnaya"] = true;
+  t.Literaturnaya = true;
-  t["Lucida"] = true;
+  t.Lucida = true;
   t["Lucida Bright"] = true;
-  t["Melior"] = true;
+  t.Melior = true;
-  t["Memphis"] = true;
+  t.Memphis = true;
-  t["Miller"] = true;
+  t.Miller = true;
-  t["Minion"] = true;
+  t.Minion = true;
-  t["Modern"] = true;
+  t.Modern = true;
   t["Mona Lisa"] = true;
   t["Mrs Eaves"] = true;
   t["MS Serif"] = true;
@@ -220,48 +220,48 @@ const getSerifFonts = getLookupTableFactory(function (t) {
   t["New York"] = true;
   t["Nimbus Roman"] = true;
   t["NPS Rawlinson Roadway"] = true;
-  t["NuptialScript"] = true;
+  t.NuptialScript = true;
-  t["Palatino"] = true;
+  t.Palatino = true;
-  t["Perpetua"] = true;
+  t.Perpetua = true;
-  t["Plantin"] = true;
+  t.Plantin = true;
   t["Plantin Schoolbook"] = true;
-  t["Playbill"] = true;
+  t.Playbill = true;
   t["Poor Richard"] = true;
   t["Rawlinson Roadway"] = true;
-  t["Renault"] = true;
+  t.Renault = true;
-  t["Requiem"] = true;
+  t.Requiem = true;
-  t["Rockwell"] = true;
+  t.Rockwell = true;
-  t["Roman"] = true;
+  t.Roman = true;
   t["Rotis Serif"] = true;
-  t["Sabon"] = true;
+  t.Sabon = true;
-  t["Scala"] = true;
+  t.Scala = true;
-  t["Seagull"] = true;
+  t.Seagull = true;
-  t["Sistina"] = true;
+  t.Sistina = true;
-  t["Souvenir"] = true;
+  t.Souvenir = true;
-  t["STIX"] = true;
+  t.STIX = true;
   t["Stone Informal"] = true;
   t["Stone Serif"] = true;
-  t["Sylfaen"] = true;
+  t.Sylfaen = true;
-  t["Times"] = true;
+  t.Times = true;
-  t["Trajan"] = true;
+  t.Trajan = true;
   t["Trinité"] = true;
   t["Trump Mediaeval"] = true;
-  t["Utopia"] = true;
+  t.Utopia = true;
   t["Vale Type"] = true;
   t["Bitstream Vera"] = true;
   t["Vera Serif"] = true;
-  t["Versailles"] = true;
+  t.Versailles = true;
-  t["Wanted"] = true;
+  t.Wanted = true;
-  t["Weiss"] = true;
+  t.Weiss = true;
   t["Wide Latin"] = true;
-  t["Windsor"] = true;
+  t.Windsor = true;
-  t["XITS"] = true;
+  t.XITS = true;
 });
 
 const getSymbolsFonts = getLookupTableFactory(function (t) {
-  t["Dingbats"] = true;
+  t.Dingbats = true;
-  t["Symbol"] = true;
+  t.Symbol = true;
-  t["ZapfDingbats"] = true;
+  t.ZapfDingbats = true;
 });
 
 // Glyph map for well-known standard fonts. Sometimes Ghostscript uses CID

src/core/type1_parser.js

@@ -566,7 +566,7 @@ var Type1Parser = (function Type1ParserClosure() {
       var subrs = [],
         charstrings = [];
       var privateData = Object.create(null);
-      privateData["lenIV"] = 4;
+      privateData.lenIV = 4;
       var program = {
         subrs: [],
         charstrings: [],
@@ -601,7 +601,7 @@ var Type1Parser = (function Type1ParserClosure() {
               length = this.readInt();
               this.getToken(); // read in 'RD' or '-|'
               data = length > 0 ? stream.getBytes(length) : new Uint8Array(0);
-              lenIV = program.properties.privateData["lenIV"];
+              lenIV = program.properties.privateData.lenIV;
               encoded = this.readCharStrings(data, lenIV);
               this.nextChar();
               token = this.getToken(); // read in 'ND' or '|-'
@@ -622,7 +622,7 @@ var Type1Parser = (function Type1ParserClosure() {
               length = this.readInt();
               this.getToken(); // read in 'RD' or '-|'
               data = length > 0 ? stream.getBytes(length) : new Uint8Array(0);
-              lenIV = program.properties.privateData["lenIV"];
+              lenIV = program.properties.privateData.lenIV;
               encoded = this.readCharStrings(data, lenIV);
               this.nextChar();
               token = this.getToken(); // read in 'NP' or '|'

src/display/node_stream.js

@@ -376,7 +376,7 @@ class PDFNodeStreamRangeReader extends BaseRangeReader {
       }
       this._httpHeaders[property] = value;
     }
-    this._httpHeaders["Range"] = `bytes=${start}-${end - 1}`;
+    this._httpHeaders.Range = `bytes=${start}-${end - 1}`;
 
     const handleResponse = response => {
       if (response.statusCode === 404) {

src/shared/is_node.js

@@ -20,7 +20,7 @@
 const isNodeJS =
   typeof process === "object" &&
   process + "" === "[object process]" &&
-  !process.versions["nw"] &&
+  !process.versions.nw &&
-  !process.versions["electron"];
+  !process.versions.electron;
 
 export { isNodeJS };

test/stats/statcmp.js

@@ -46,7 +46,7 @@ function group(stats, groupBy) {
     if (vals[key] === undefined) {
       vals[key] = [];
     }
-    vals[key].push(curStat["time"]);
+    vals[key].push(curStat.time);
   }
   return vals;
 }
@@ -58,14 +58,14 @@ function group(stats, groupBy) {
 function flatten(stats) {
   var rows = [];
   stats.forEach(function (curStat) {
-    curStat["stats"].forEach(function (s) {
+    curStat.stats.forEach(function (s) {
       rows.push({
-        browser: curStat["browser"],
+        browser: curStat.browser,
-        page: curStat["page"],
+        page: curStat.page,
-        pdf: curStat["pdf"],
+        pdf: curStat.pdf,
-        round: curStat["round"],
+        round: curStat.round,
-        stat: s["name"],
+        stat: s.name,
-        time: s["end"] - s["start"],
+        time: s.end - s.start,
       });
     });
   });

test/test.js

@@ -191,7 +191,7 @@ function examineRefImages() {
     server.port +
     "/test/resources/reftest-analyzer.html#web=/test/eq.log";
   var config = Object.assign({}, sessions[0].config);
-  config["headless"] = false;
+  config.headless = false;
   var browser = WebBrowser.create(config);
   browser.start(startUrl);
 }
@@ -271,7 +271,7 @@ function startRefTest(masterMode, showRefImages) {
 
     startTime = Date.now();
     startServer();
-    server.hooks["POST"].push(refTestPostHandler);
+    server.hooks.POST.push(refTestPostHandler);
     onAllSessionsClosed = finalize;
 
     startBrowsers("/test/test_slave.html", function (session) {
@@ -692,7 +692,7 @@ function refTestPostHandler(req, res) {
 function startUnitTest(testUrl, name) {
   var startTime = Date.now();
   startServer();
-  server.hooks["POST"].push(unitTestPostHandler);
+  server.hooks.POST.push(unitTestPostHandler);
   onAllSessionsClosed = function () {
     stopServer();
     var numRuns = 0,

test/unit/api_spec.js

@@ -1116,15 +1116,15 @@ describe("api", function () {
       var promise = pdfDocument.getMetadata();
       promise
         .then(function ({ info, metadata, contentDispositionFilename }) {
-          expect(info["Title"]).toEqual("Basic API Test");
+          expect(info.Title).toEqual("Basic API Test");
           // Custom, non-standard, information dictionary entries.
-          expect(info["Custom"]).toEqual(undefined);
+          expect(info.Custom).toEqual(undefined);
           // The following are PDF.js specific, non-standard, properties.
-          expect(info["PDFFormatVersion"]).toEqual("1.7");
+          expect(info.PDFFormatVersion).toEqual("1.7");
-          expect(info["IsLinearized"]).toEqual(false);
+          expect(info.IsLinearized).toEqual(false);
-          expect(info["IsAcroFormPresent"]).toEqual(false);
+          expect(info.IsAcroFormPresent).toEqual(false);
-          expect(info["IsXFAPresent"]).toEqual(false);
+          expect(info.IsXFAPresent).toEqual(false);
-          expect(info["IsCollectionPresent"]).toEqual(false);
+          expect(info.IsCollectionPresent).toEqual(false);
 
           expect(metadata instanceof Metadata).toEqual(true);
           expect(metadata.get("dc:title")).toEqual("Basic API Test");
@@ -1142,11 +1142,11 @@ describe("api", function () {
           return pdfDoc.getMetadata();
         })
         .then(function ({ info, metadata, contentDispositionFilename }) {
-          expect(info["Creator"]).toEqual("TeX");
+          expect(info.Creator).toEqual("TeX");
-          expect(info["Producer"]).toEqual("pdfeTeX-1.21a");
+          expect(info.Producer).toEqual("pdfeTeX-1.21a");
-          expect(info["CreationDate"]).toEqual("D:20090401163925-07'00'");
+          expect(info.CreationDate).toEqual("D:20090401163925-07'00'");
           // Custom, non-standard, information dictionary entries.
-          const custom = info["Custom"];
+          const custom = info.Custom;
           expect(typeof custom === "object" && custom !== null).toEqual(true);
 
           expect(custom["PTEX.Fullbanner"]).toEqual(
@@ -1154,11 +1154,11 @@ describe("api", function () {
               "Version 3.141592-1.21a-2.2 (Web2C 7.5.4) kpathsea version 3.5.6"
           );
           // The following are PDF.js specific, non-standard, properties.
-          expect(info["PDFFormatVersion"]).toEqual("1.4");
+          expect(info.PDFFormatVersion).toEqual("1.4");
-          expect(info["IsLinearized"]).toEqual(false);
+          expect(info.IsLinearized).toEqual(false);
-          expect(info["IsAcroFormPresent"]).toEqual(false);
+          expect(info.IsAcroFormPresent).toEqual(false);
-          expect(info["IsXFAPresent"]).toEqual(false);
+          expect(info.IsXFAPresent).toEqual(false);
-          expect(info["IsCollectionPresent"]).toEqual(false);
+          expect(info.IsCollectionPresent).toEqual(false);
 
           expect(metadata).toEqual(null);
           expect(contentDispositionFilename).toEqual(null);
@@ -1176,11 +1176,11 @@ describe("api", function () {
         })
         .then(function ({ info, metadata, contentDispositionFilename }) {
           // The following are PDF.js specific, non-standard, properties.
-          expect(info["PDFFormatVersion"]).toEqual(null);
+          expect(info.PDFFormatVersion).toEqual(null);
-          expect(info["IsLinearized"]).toEqual(false);
+          expect(info.IsLinearized).toEqual(false);
-          expect(info["IsAcroFormPresent"]).toEqual(false);
+          expect(info.IsAcroFormPresent).toEqual(false);
-          expect(info["IsXFAPresent"]).toEqual(false);
+          expect(info.IsXFAPresent).toEqual(false);
-          expect(info["IsCollectionPresent"]).toEqual(false);
+          expect(info.IsCollectionPresent).toEqual(false);
 
           expect(metadata).toEqual(null);
           expect(contentDispositionFilename).toEqual(null);

test/unit/node_stream_spec.js

@@ -47,7 +47,7 @@ describe("node_stream", function () {
             response.end(`File ${request.url} not found!`);
             return;
           }
-          if (!request.headers["range"]) {
+          if (!request.headers.range) {
             const contentLength = stat.size;
             const stream = fs.createReadStream(filePath);
             response.writeHead(200, {
@@ -57,7 +57,7 @@ describe("node_stream", function () {
             });
             stream.pipe(response);
           } else {
-            const [start, end] = request.headers["range"]
+            const [start, end] = request.headers.range
               .split("=")[1]
               .split("-")
               .map(x => {

test/unit/testreporter.js

@@ -19,7 +19,7 @@ var TestReporter = function (browser, appPath) {
         }
       }
     };
-    json["browser"] = browser;
+    json.browser = browser;
     r.send(JSON.stringify(json));
   }
 
@@ -33,7 +33,7 @@ var TestReporter = function (browser, appPath) {
       description,
     };
     if (typeof error !== "undefined") {
-      message["error"] = error;
+      message.error = error;
     }
     send("/submit_task_results", message);
   }

test/unit/unicode_spec.js

@@ -107,7 +107,7 @@ describe("unicode", function () {
     });
 
     it("should not normalize standard characters", function () {
-      expect(NormalizedUnicodes["A"]).toEqual(undefined);
+      expect(NormalizedUnicodes.A).toEqual(undefined);
     });
   });
 

test/webserver.js

@@ -163,7 +163,7 @@ WebServer.prototype = {
         return;
       }
 
-      var range = req.headers["range"];
+      var range = req.headers.range;
       if (range && !disableRangeRequests) {
         var rangesMatches = /^bytes=(\d+)\-(\d+)?/.exec(range);
         if (!rangesMatches) {
@@ -344,11 +344,11 @@ WebServer.prototype = {
 // http://localhost:8888/test/unit/unit_test.html?spec=Cross-origin
 function crossOriginHandler(req, res) {
   if (req.url === "/test/pdfs/basicapi.pdf?cors=withCredentials") {
-    res.setHeader("Access-Control-Allow-Origin", req.headers["origin"]);
+    res.setHeader("Access-Control-Allow-Origin", req.headers.origin);
     res.setHeader("Access-Control-Allow-Credentials", "true");
   }
   if (req.url === "/test/pdfs/basicapi.pdf?cors=withoutCredentials") {
-    res.setHeader("Access-Control-Allow-Origin", req.headers["origin"]);
+    res.setHeader("Access-Control-Allow-Origin", req.headers.origin);
   }
 }
 

web/app.js

@@ -263,41 +263,35 @@ const PDFViewerApplication = {
     const hashParams = parseQueryString(hash),
       waitOn = [];
 
-    if (
+    if ("disableworker" in hashParams && hashParams.disableworker === "true") {
-      "disableworker" in hashParams &&
-      hashParams["disableworker"] === "true"
-    ) {
       waitOn.push(loadFakeWorker());
     }
     if ("disablerange" in hashParams) {
-      AppOptions.set("disableRange", hashParams["disablerange"] === "true");
+      AppOptions.set("disableRange", hashParams.disablerange === "true");
     }
     if ("disablestream" in hashParams) {
-      AppOptions.set("disableStream", hashParams["disablestream"] === "true");
+      AppOptions.set("disableStream", hashParams.disablestream === "true");
     }
     if ("disableautofetch" in hashParams) {
       AppOptions.set(
         "disableAutoFetch",
-        hashParams["disableautofetch"] === "true"
+        hashParams.disableautofetch === "true"
       );
     }
     if ("disablefontface" in hashParams) {
-      AppOptions.set(
+      AppOptions.set("disableFontFace", hashParams.disablefontface === "true");
-        "disableFontFace",
-        hashParams["disablefontface"] === "true"
-      );
     }
     if ("disablehistory" in hashParams) {
-      AppOptions.set("disableHistory", hashParams["disablehistory"] === "true");
+      AppOptions.set("disableHistory", hashParams.disablehistory === "true");
     }
     if ("webgl" in hashParams) {
-      AppOptions.set("enableWebGL", hashParams["webgl"] === "true");
+      AppOptions.set("enableWebGL", hashParams.webgl === "true");
     }
     if ("verbosity" in hashParams) {
-      AppOptions.set("verbosity", hashParams["verbosity"] | 0);
+      AppOptions.set("verbosity", hashParams.verbosity | 0);
     }
     if ("textlayer" in hashParams) {
-      switch (hashParams["textlayer"]) {
+      switch (hashParams.textlayer) {
         case "off":
           AppOptions.set("textLayerMode", TextLayerMode.DISABLE);
           break;
@@ -305,7 +299,7 @@ const PDFViewerApplication = {
         case "shadow":
         case "hover":
           const viewer = this.appConfig.viewerContainer;
-          viewer.classList.add("textLayer-" + hashParams["textlayer"]);
+          viewer.classList.add("textLayer-" + hashParams.textlayer);
           break;
       }
     }
@@ -313,7 +307,7 @@ const PDFViewerApplication = {
       AppOptions.set("pdfBug", true);
       AppOptions.set("fontExtraProperties", true);
 
-      const enabled = hashParams["pdfbug"].split(",");
+      const enabled = hashParams.pdfbug.split(",");
       waitOn.push(loadAndEnablePDFBug(enabled));
     }
     // It is not possible to change locale for the (various) extension builds.
@@ -322,7 +316,7 @@ const PDFViewerApplication = {
         PDFJSDev.test("!PRODUCTION || GENERIC")) &&
       "locale" in hashParams
     ) {
-      AppOptions.set("locale", hashParams["locale"]);
+      AppOptions.set("locale", hashParams.locale);
     }
 
     return Promise.all(waitOn).catch(reason => {
@@ -1004,7 +998,7 @@ const PDFViewerApplication = {
       // To prevent displaying a partially filled loading bar permanently, we
       // hide it when no data has been loaded during a certain amount of time.
       const disableAutoFetch = this.pdfDocument
-        ? this.pdfDocument.loadingParams["disableAutoFetch"]
+        ? this.pdfDocument.loadingParams.disableAutoFetch
         : AppOptions.get("disableAutoFetch");
 
       if (disableAutoFetch && percent) {
@@ -1287,7 +1281,7 @@ const PDFViewerApplication = {
 
     let pdfTitle;
 
-    const infoTitle = info && info["Title"];
+    const infoTitle = info && info.Title;
     if (infoTitle) {
       pdfTitle = infoTitle;
     }

web/base_viewer.js

@@ -519,10 +519,7 @@ class BaseViewer {
 
           // In addition to 'disableAutoFetch' being set, also attempt to reduce
           // resource usage when loading *very* long/large documents.
-          if (
+          if (pdfDocument.loadingParams.disableAutoFetch || pagesCount > 7500) {
-            pdfDocument.loadingParams["disableAutoFetch"] ||
-            pagesCount > 7500
-          ) {
             // XXX: Printing is semi-broken with auto fetch disabled.
             this._pagesCapability.resolve();
             return;

web/pdf_document_properties.js

@@ -118,8 +118,8 @@ class PDFDocumentProperties {
       // just update the dialog immediately to avoid redundant lookups.
       if (
         this.fieldData &&
-        currentPageNumber === this.fieldData["_currentPageNumber"] &&
+        currentPageNumber === this.fieldData._currentPageNumber &&
-        pagesRotation === this.fieldData["_pagesRotation"]
+        pagesRotation === this.fieldData._pagesRotation
       ) {
         this._updateUI();
         return;
@@ -186,11 +186,11 @@ class PDFDocumentProperties {
           return this._parseFileSize(length);
         })
         .then(fileSize => {
-          if (fileSize === this.fieldData["fileSize"]) {
+          if (fileSize === this.fieldData.fileSize) {
             return; // The fileSize has already been correctly set.
           }
           const data = Object.assign(Object.create(null), this.fieldData);
-          data["fileSize"] = fileSize;
+          data.fileSize = fileSize;
 
           freezeFieldData(data);
           this._updateUI();

web/pdf_link_service.js

@@ -228,8 +228,8 @@ class PDFLinkService {
       if ("search" in params) {
         this.eventBus.dispatch("findfromurlhash", {
           source: this,
-          query: params["search"].replace(/"/g, ""),
+          query: params.search.replace(/"/g, ""),
-          phraseSearch: params["phrase"] === "true",
+          phraseSearch: params.phrase === "true",
         });
       }
       // borrowing syntax from "Parameters for Opening PDF Files"

web/pdf_print_service.js

@@ -66,7 +66,7 @@ function PDFPrintService(pdfDocument, pagesOverview, printContainer, l10n) {
   this.printContainer = printContainer;
   this.l10n = l10n || NullL10n;
   this.disableCreateObjectURL =
-    pdfDocument.loadingParams["disableCreateObjectURL"];
+    pdfDocument.loadingParams.disableCreateObjectURL;
   this.currentPage = -1;
   // The temporary canvas where renderPage paints one page at a time.
   this.scratchCanvas = document.createElement("canvas");