fix: update eslint

eslint.config.mjs

@@ -0,0 +1,24 @@
+import globals from "globals";
+import pluginJs from "@eslint/js";
+import tseslint from "typescript-eslint";
+import eslintConfigPrettier from "eslint-config-prettier";
+
+export default [
+  {
+    languageOptions: {
+      globals: globals.browser,
+    },
+  },
+  pluginJs.configs.recommended,
+  ...tseslint.configs.recommended,
+  eslintConfigPrettier,
+  {
+    ignores: [
+      'coverage',
+      'dist',
+      'node_modules',
+      '.vscode',
+      'rollup.config.js',
+    ]
+  },
+];

package.json

@@ -35,6 +35,7 @@
     "docs"
   ],
   "devDependencies": {
+    "@eslint/js": "^9.12.0",
     "@rollup/plugin-terser": "^0.4.4",
     "@rollup/plugin-typescript": "^12.1.1",
     "@semantic-release/changelog": "^6.0.3",
@@ -45,13 +46,12 @@
     "@semantic-release/release-notes-generator": "^14.0.1",
     "@types/jest": "^29.5.13",
     "@types/node": "^22.7.6",
-    "@typescript-eslint/eslint-plugin": "^7.18.0",
-    "@typescript-eslint/parser": "^7.18.0",
     "cpy-cli": "^5.0.0",
     "del": "^8.0.0",
     "del-cli": "^6.0.0",
-    "eslint": "^8.57.1",
+    "eslint": "^9.12.0",
     "eslint-config-prettier": "^9.1.0",
+    "globals": "^15.11.0",
     "jest": "^29.7.0",
     "jest-canvas-mock": "^2.5.2",
     "jest-environment-jsdom": "^29.7.0",
@@ -61,7 +61,8 @@
     "serve": "^14.2.4",
     "ts-jest": "^29.2.5",
     "tslib": "^2.8.0",
-    "typescript": "~5.6.3"
+    "typescript": "~5.6.3",
+    "typescript-eslint": "^8.9.0"
   },
   "jest": {
     "moduleFileExtensions": [

src/signature_event_target.ts

@@ -6,7 +6,7 @@ export class SignatureEventTarget {
   constructor() {
     try {
       this._et = new EventTarget();
-    } catch (error) {
+    } catch {
       // Using document as EventTarget to support iOS 13 and older.
       // Because EventTarget constructor just exists at iOS 14 and later.
       this._et = document;

src/signature_pad.ts

@@ -749,7 +749,6 @@ export default class SignaturePad extends SignatureEventTarget {
         // Need to check curve for NaN values, these pop up when drawing
         // lines on the canvas that are not continuous. E.g. Sharp corners
         // or stopping mid-stroke and than continuing without lifting mouse.
-        /* eslint-disable no-restricted-globals */
         if (
           !isNaN(curve.control1.x) &&
           !isNaN(curve.control1.y) &&
@@ -771,7 +770,6 @@ export default class SignaturePad extends SignatureEventTarget {
 
           svg.appendChild(path);
         }
-        /* eslint-enable no-restricted-globals */
       },
 
       (point, { penColor, dotSize, minWidth, maxWidth }) => {