Update packages and linting

package.json

@@ -148,26 +148,26 @@
     "build-all": "build() { pnpm -s build-mjs $1; echo ; pnpm -s build-cjs $1; }; build"
   },
   "devDependencies": {
-    "@eslint/js": "^9.39.2",
+    "@eslint/js": "^10.0.1",
     "@xmldom/xmldom": "^0.9.10",
     "copyfiles": "^2.4.1",
     "diff": "^9.0.0",
-    "eslint": "^9.39.2",
+    "eslint": "^10.8.0",
     "eslint-formatter-unix": "^9.0.1",
-    "eslint-plugin-jsdoc": "^62.5.5",
-    "eslint-plugin-prettier": "^5.5.5",
+    "eslint-plugin-jsdoc": "^63.3.3",
+    "eslint-plugin-prettier": "^5.5.6",
     "husky": "^9.1.7",
-    "lint-staged": "^16.2.7",
-    "prettier": "^3.8.3",
+    "lint-staged": "^17.3.0",
+    "prettier": "^3.9.6",
     "rimraf": "^6.1.3",
     "string-replace-loader": "^3.3.0",
-    "terser-webpack-plugin": "^5.5.0",
-    "typedoc": "^0.28.19",
+    "terser-webpack-plugin": "^5.6.1",
+    "typedoc": "^0.28.20",
     "typescript": "^5.9.3",
-    "typescript-eslint": "^8.56.0",
+    "typescript-eslint": "^8.66.0",
     "typescript-tools": "^0.3.1",
-    "webpack": "^5.106.2",
-    "webpack-cli": "^7.0.2",
+    "webpack": "^5.109.2",
+    "webpack-cli": "^7.2.2",
     "wicked-good-xpath": "^1.3.0",
     "xslt3": "^2.7.0"
   },

testsuite/tsconfig.json

@@ -12,6 +12,7 @@
       "#helpers": ["./js/src/index.js"]
     },
     "isolatedModules": true,
+    "skipLibCheck": true,
     "lib": ["DOM", "es2022"]
   },
   "include": ["./tests/**/*.ts", "./src/*.ts"]

ts/core/MmlTree/MmlNodes/mo.ts

@@ -346,16 +346,16 @@ export class MmlMo extends AbstractMmlTokenNode {
    */
   public adjustTeXclass(prev: MmlNode): MmlNode {
     const texClass = this.texClass;
-    let prevClass = this.prevClass;
     if (texClass === TEXCLASS.NONE) {
       return prev;
     }
+    let prevClass;
     if (prev) {
       if (
         prev.getProperty('autoOP') &&
         (texClass === TEXCLASS.BIN || texClass === TEXCLASS.REL)
       ) {
-        prevClass = prev.texClass = TEXCLASS.ORD;
+        prev.texClass = TEXCLASS.ORD;
       }
       prevClass = this.prevClass = prev.texClass || TEXCLASS.ORD;
       this.prevLevel = this.attributes.getInherited('scriptlevel') as number;

ts/handlers/html/HTMLDomStrings.ts

@@ -240,7 +240,7 @@ export class HTMLDomStrings<N, T, D> {
     const cname = this.adaptor.getAttribute(node, 'class') || '';
     const tname = this.adaptor.kind(node) || '';
     const process = this.processHtmlClass.exec(cname);
-    let next = node as N | T;
+    let next;
     if (
       this.adaptor.firstChild(node) &&
       !this.adaptor.getAttribute(node, 'data-MJX') &&

ts/input/tex/ParseUtil.ts

@@ -112,7 +112,7 @@ function readKeyval(text: string, l3keys: boolean = false): EnvList {
     [key, end, rest] = readValue(rest, ['=', ','], l3keys, dropBrace);
     dropBrace = false;
     if (end === '=') {
-      [val, end, rest] = readValue(rest, [','], l3keys);
+      [val, , rest] = readValue(rest, [','], l3keys);
       val = val === 'false' || val === 'true' ? JSON.parse(val) : val;
       options[key] = val;
     } else if (key) {

ts/input/tex/ams/AmsItems.ts

@@ -93,7 +93,6 @@ export class MultlineItem extends ArrayItem {
     super.EndTable();
     if (this.table.length) {
       const m = this.table.length - 1;
-      let label = -1;
       if (
         !NodeUtil.getAttribute(
           NodeUtil.getChildren(this.table[0])[0],
@@ -120,7 +119,7 @@ export class MultlineItem extends ArrayItem {
       }
       const tag = this.factory.configuration.tags.getTag();
       if (tag) {
-        label =
+        const label =
           this.arraydef.side === TexConstant.Align.LEFT
             ? 0
             : this.table.length - 1;

ts/input/tex/newcommand/NewcommandMethods.ts

@@ -296,7 +296,7 @@ const NewcommandMethods: { [key: string]: ParseMethod } = {
         args.push(parser.GetArgument(`\\begin{${name}}`));
       }
       bdef = ParseUtil.substituteArgs(parser, args, bdef);
-      edef = ParseUtil.substituteArgs(parser, [], edef); // no args, but get errors for #n in edef
+      ParseUtil.substituteArgs(parser, [], edef); // no args, but get errors for #n in edef
     }
     parser.string = ParseUtil.addArgs(
       parser,

ts/input/tex/newcommand/NewcommandUtil.ts

@@ -119,12 +119,12 @@ export const NewcommandUtil = {
    */
   GetTemplate(parser: TexParser, cmd: string, cs: string): number | string[] {
     // @test Def Double Let, Def ReDef, Def Let
-    let c = parser.GetNext();
+    parser.GetNext(); // Move past the first non-whitespace character.
     const params: string[] = [];
     let n = 0;
     let i = parser.i;
     while (parser.i < parser.string.length) {
-      c = parser.GetNext();
+      let c = parser.GetNext();
       if (c === '#') {
         // @test Def ReDef, Def Let, Def Optional Brace
         if (i !== parser.i) {

ts/input/tex/physics/PhysicsMethods.ts

@@ -137,14 +137,11 @@ function vectorApplication(
   if (!right) {
     return;
   }
-  let lfence = '',
-    rfence = '',
-    arg = '';
   const enlarge = fences.includes(left);
   if (left === '{') {
-    arg = parser.GetArgument(name);
-    lfence = enlarge ? '\\left\\{' : '';
-    rfence = enlarge ? '\\right\\}' : '';
+    const arg = parser.GetArgument(name);
+    const lfence = enlarge ? '\\left\\{' : '';
+    const rfence = enlarge ? '\\right\\}' : '';
     const macro = `${lfence} ${arg} ${rfence}`;
     parser.string = macro + parser.string.slice(parser.i);
     parser.i = 0;
@@ -681,7 +678,7 @@ const PhysicsMethods: { [key: string]: ParseMethod } = {
         parser.i = saveI;
       }
     }
-    let macro = '';
+    let macro;
     if (hasKet) {
       macro =
         starBra || starKet
@@ -727,7 +724,7 @@ const PhysicsMethods: { [key: string]: ParseMethod } = {
     if (parser.GetNext() === '{') {
       ket = parser.GetArgument(name, true);
     }
-    let macro = '';
+    let macro;
     if (ket == null) {
       macro = star
         ? `\\langle{${bra}}\\vert{${bra}}\\rangle`
@@ -755,7 +752,7 @@ const PhysicsMethods: { [key: string]: ParseMethod } = {
     if (parser.GetNext() === '{') {
       bra = parser.GetArgument(name, true);
     }
-    let macro = '';
+    let macro;
     if (bra == null) {
       macro = star
         ? `\\vert{${ket}}\\rangle\\!\\langle{${ket}}\\vert`
@@ -928,7 +925,7 @@ const PhysicsMethods: { [key: string]: ParseMethod } = {
       parser.i = 0;
       return;
     }
-    let matrix = '';
+    let matrix;
     if (n === 1 && m === 1) {
       // Case 1: n=m=1, no index.
       matrix = arg1;
@@ -1010,7 +1007,7 @@ const PhysicsMethods: { [key: string]: ParseMethod } = {
     const endI = parser.i;
     parser.i = startI + 1;
     const elements = [];
-    let element = '';
+    let element;
     let currentI = parser.i;
     while (currentI < endI) {
       try {

ts/output/common/Wrappers/mmultiscripts.ts

@@ -481,7 +481,8 @@ export function CommonMmultiscriptsMixin<
      */
     public getUVQ(subbox: BBox, supbox: BBox) {
       if (!this.UVQ) {
-        let [u, v, q] = [0, 0, 0];
+        let u;
+        let [v, q] = [0, 0];
         if (subbox.w === 0) {
           //
           //  Use placement for superscript only

ts/output/common/Wrappers/mo.ts

@@ -499,7 +499,8 @@ export function CommonMoMixin<
       const hasWHD = WHD.length === 2 && WHD[0] + WHD[1] === HD;
       const symmetric = this.node.attributes.get('symmetric');
       const [H, D] = hasWHD ? WHD : [HD, 0];
-      let [h, d] = [H + D, 0];
+      let h = H + D;
+      let d;
       if (symmetric) {
         //
         //  Center on the math axis