diff --git a/.eslintignore b/.eslintignore
deleted file mode 100644
index 1fdfaff..0000000
--- a/.eslintignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*.d.ts
-dist
diff --git a/.eslintrc.json b/.eslintrc.json
deleted file mode 100644
index 4b370a5..0000000
--- a/.eslintrc.json
+++ /dev/null
@@ -1,29 +0,0 @@
-{
-  "root": true,
-  "extends": [
-    "eslint:recommended",
-    "plugin:@typescript-eslint/recommended",
-    "prettier"
-  ],
-  "parser": "@typescript-eslint/parser",
-  "plugins": ["@typescript-eslint"],
-  "parserOptions": {
-    "sourceType": "module",
-    "ecmaVersion": 2020
-  },
-  "env": {
-    "browser": true,
-    "es2017": true,
-    "node": true
-  },
-  "rules": {
-    "@typescript-eslint/no-explicit-any": "off",
-    "@typescript-eslint/no-this-alias": "off",
-    "@typescript-eslint/ban-types": "off",
-    "no-constant-condition": "off",
-    "no-unused-vars": [
-      "error",
-      { "argsIgnorePattern": "^_", "varsIgnorePattern": "^_" }
-    ]
-  }
-}
diff --git a/eslint.config.mjs b/eslint.config.mjs
new file mode 100644
index 0000000..5ecf011
--- /dev/null
+++ b/eslint.config.mjs
@@ -0,0 +1,53 @@
+import js from "@eslint/js";
+import prettier from "eslint-config-prettier";
+import globals from "globals";
+import ts from "typescript-eslint";
+
+/** @type {import('eslint').Linter.Config[]} */
+export default [
+	js.configs.recommended,
+	...ts.configs.recommended,
+	prettier,
+	{
+		languageOptions: {
+			globals: {
+				...globals.browser,
+				...globals.jquery,
+				...globals.node,
+			},
+		},
+		rules: {
+			"no-unused-vars": "off",
+			"@typescript-eslint/no-unused-vars": "off",
+			"@typescript-eslint/no-explicit-any": "off",
+			"@typescript-eslint/no-this-alias": "off",
+			"@typescript-eslint/no-empty-object-type": "off",
+			"@typescript-eslint/triple-slash-reference": "off",
+		},
+	},
+	{
+		files: ["tests/**/*.js"],
+		languageOptions: {
+			globals: {
+				...globals.qunit,
+			},
+		},
+	},
+	{
+		ignores: [
+			".DS_Store",
+			"node_modules",
+			"build",
+			"dist",
+			"coverage",
+			".vercel",
+			"package",
+			".env",
+			".env.*",
+			"!.env.example",
+			"pnpm-lock.yaml",
+			"package-lock.json",
+			"yarn.lock",
+		],
+	},
+];
diff --git a/package.json b/package.json
index 223329e..95c9234 100644
--- a/package.json
+++ b/package.json
@@ -31,14 +31,14 @@
   },
   "license": "MIT",
   "devDependencies": {
+    "@eslint/js": "^9.9.0",
     "@rollup/plugin-commonjs": "^25.0.7",
     "@types/jquery": "^3.5.30",
-    "@typescript-eslint/eslint-plugin": "^7.10.0",
-    "@typescript-eslint/parser": "^7.10.0",
     "esbuild": "^0.21.4",
-    "eslint": "^8.56.0",
+    "eslint": "^9.9.0",
     "eslint-config-prettier": "^9.1.0",
     "glob": "^10.3.10",
+    "globals": "^15.9.0",
     "jquery": "^3.7.1",
     "prettier": "^3.2.5",
     "qunit": "^2.21.0",
@@ -46,7 +46,8 @@
     "rollup-plugin-copy": "^3.5.0",
     "rollup-plugin-esbuild": "^6.1.1",
     "tslib": "^2.6.2",
-    "typescript": "^5.4.5"
+    "typescript": "^5.4.5",
+    "typescript-eslint": "^8.1.0"
   },
   "peerDependencies": {
     "jquery": ">=1.9.0"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ab8054a..8059ae4 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -8,30 +8,30 @@ overrides:
   trim-newlines@<3.0.1: '>=3.0.1'
 
 devDependencies:
+  '@eslint/js':
+    specifier: ^9.9.0
+    version: 9.9.0
   '@rollup/plugin-commonjs':
     specifier: ^25.0.7
     version: 25.0.7(rollup@4.17.2)
   '@types/jquery':
     specifier: ^3.5.30
     version: 3.5.30
-  '@typescript-eslint/eslint-plugin':
-    specifier: ^7.10.0
-    version: 7.10.0(@typescript-eslint/parser@7.10.0)(eslint@8.56.0)(typescript@5.4.5)
-  '@typescript-eslint/parser':
-    specifier: ^7.10.0
-    version: 7.10.0(eslint@8.56.0)(typescript@5.4.5)
   esbuild:
     specifier: ^0.21.4
     version: 0.21.4
   eslint:
-    specifier: ^8.56.0
-    version: 8.56.0
+    specifier: ^9.9.0
+    version: 9.9.0
   eslint-config-prettier:
     specifier: ^9.1.0
-    version: 9.1.0(eslint@8.56.0)
+    version: 9.1.0(eslint@9.9.0)
   glob:
     specifier: ^10.3.10
     version: 10.3.10
+  globals:
+    specifier: ^15.9.0
+    version: 15.9.0
   jquery:
     specifier: ^3.7.1
     version: 3.7.1
@@ -56,6 +56,9 @@ devDependencies:
   typescript:
     specifier: ^5.4.5
     version: 5.4.5
+  typescript-eslint:
+    specifier: ^8.1.0
+    version: 8.1.0(eslint@9.9.0)(typescript@5.4.5)
 
 packages:
 
@@ -271,13 +274,13 @@ packages:
     dev: true
     optional: true
 
-  /@eslint-community/eslint-utils@4.4.0(eslint@8.56.0):
+  /@eslint-community/eslint-utils@4.4.0(eslint@9.9.0):
     resolution: {integrity: sha512-1/sA4dwrzBAyeUoQ6oxahHKmrZvsnLCg4RfxW3ZFGGmQkSNQPFNLV9CUEFQP1x9EYXHTo5p6xdhZM1Ne9p/AfA==}
     engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
     peerDependencies:
       eslint: ^6.0.0 || ^7.0.0 || >=8.0.0
     dependencies:
-      eslint: 8.56.0
+      eslint: 9.9.0
       eslint-visitor-keys: 3.4.3
     dev: true
 
@@ -286,15 +289,31 @@ packages:
     engines: {node: ^12.0.0 || ^14.0.0 || >=16.0.0}
     dev: true
 
-  /@eslint/eslintrc@2.1.4:
-    resolution: {integrity: sha512-269Z39MS6wVJtsoUl10L60WdkhJVdPG24Q4eZTH3nnF6lpvSShEK3wQjDX9JRWAUPvPh7COouPpU9IrqaZFvtQ==}
-    engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
+  /@eslint-community/regexpp@4.11.0:
+    resolution: {integrity: sha512-G/M/tIiMrTAxEWRfLfQJMmGNX28IxBg4PBz8XqQhqUHLFI6TL2htpIB1iQCj144V5ee/JaKyT9/WZ0MGZWfA7A==}
+    engines: {node: ^12.0.0 || ^14.0.0 || >=16.0.0}
+    dev: true
+
+  /@eslint/config-array@0.17.1:
+    resolution: {integrity: sha512-BlYOpej8AQ8Ev9xVqroV7a02JK3SkBAaN9GfMMH9W6Ch8FlQlkjGw4Ir7+FgYwfirivAf4t+GtzuAxqfukmISA==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+    dependencies:
+      '@eslint/object-schema': 2.1.4
+      debug: 4.3.4
+      minimatch: 3.1.2
+    transitivePeerDependencies:
+      - supports-color
+    dev: true
+
+  /@eslint/eslintrc@3.1.0:
+    resolution: {integrity: sha512-4Bfj15dVJdoy3RfZmmo86RK1Fwzn6SstsvK9JS+BaVKqC6QQQQyXekNaC+g+LKNgkQ+2VhGAzm6hO40AhMR3zQ==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     dependencies:
       ajv: 6.12.6
       debug: 4.3.4
-      espree: 9.6.1
-      globals: 13.24.0
-      ignore: 5.2.0
+      espree: 10.1.0
+      globals: 14.0.0
+      ignore: 5.3.1
       import-fresh: 3.3.0
       js-yaml: 4.1.0
       minimatch: 3.1.2
@@ -303,20 +322,14 @@ packages:
       - supports-color
     dev: true
 
-  /@eslint/js@8.56.0:
-    resolution: {integrity: sha512-gMsVel9D7f2HLkBma9VbtzZRehRogVRfbr++f06nL2vnCGCNlzOD+/MUov/F4p8myyAHspEhVobgjpX64q5m6A==}
-    engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
+  /@eslint/js@9.9.0:
+    resolution: {integrity: sha512-hhetes6ZHP3BlXLxmd8K2SNgkhNSi+UcecbnwWKwpP7kyi/uC75DJ1lOOBO3xrC4jyojtGE3YxKZPHfk4yrgug==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     dev: true
 
-  /@humanwhocodes/config-array@0.11.13:
-    resolution: {integrity: sha512-JSBDMiDKSzQVngfRjOdFXgFfklaXI4K9nLF49Auh21lmBWRLIK3+xTErTWD4KU54pb6coM6ESE7Awz/FNU3zgQ==}
-    engines: {node: '>=10.10.0'}
-    dependencies:
-      '@humanwhocodes/object-schema': 2.0.1
-      debug: 4.3.4
-      minimatch: 3.1.2
-    transitivePeerDependencies:
-      - supports-color
+  /@eslint/object-schema@2.1.4:
+    resolution: {integrity: sha512-BsWiH1yFGjXXS2yvrf5LyuoSIIbPrGUWob917o+BTKuZ7qJdxX8aJLRxs1fS9n6r7vESrq1OUqb68dANcFXuQQ==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     dev: true
 
   /@humanwhocodes/module-importer@1.0.1:
@@ -324,8 +337,9 @@ packages:
     engines: {node: '>=12.22'}
     dev: true
 
-  /@humanwhocodes/object-schema@2.0.1:
-    resolution: {integrity: sha512-dvuCeX5fC9dXgJn9t+X5atfmgQAzUOWqS1254Gh0m6i8wKd10ebXkfNKiRK+1GWi/yTvvLDHpoxLr0xxxeslWw==}
+  /@humanwhocodes/retry@0.3.0:
+    resolution: {integrity: sha512-d2CGZR2o7fS6sWB7DG/3a95bGKQyHMACZ5aW8qGkkqQpUoZV6C0X7Pc7l4ZNMZkfNBf4VWNe9E1jRsf0G146Ew==}
+    engines: {node: '>=18.18'}
     dev: true
 
   /@isaacs/cliui@8.0.2:
@@ -570,24 +584,24 @@ packages:
     resolution: {integrity: sha512-0vWLNK2D5MT9dg0iOo8GlKguPAU02QjmZitPEsXRuJXU/OGIOt9vT9Fc26wtYuavLxtO45v9PGleoL9Z0k1LHg==}
     dev: true
 
-  /@typescript-eslint/eslint-plugin@7.10.0(@typescript-eslint/parser@7.10.0)(eslint@8.56.0)(typescript@5.4.5):
-    resolution: {integrity: sha512-PzCr+a/KAef5ZawX7nbyNwBDtM1HdLIT53aSA2DDlxmxMngZ43O8SIePOeX8H5S+FHXeI6t97mTt/dDdzY4Fyw==}
-    engines: {node: ^18.18.0 || >=20.0.0}
+  /@typescript-eslint/eslint-plugin@8.1.0(@typescript-eslint/parser@8.1.0)(eslint@9.9.0)(typescript@5.4.5):
+    resolution: {integrity: sha512-LlNBaHFCEBPHyD4pZXb35mzjGkuGKXU5eeCA1SxvHfiRES0E82dOounfVpL4DCqYvJEKab0bZIA0gCRpdLKkCw==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     peerDependencies:
-      '@typescript-eslint/parser': ^7.0.0
-      eslint: ^8.56.0
+      '@typescript-eslint/parser': ^8.0.0 || ^8.0.0-alpha.0
+      eslint: ^8.57.0 || ^9.0.0
       typescript: '*'
     peerDependenciesMeta:
       typescript:
         optional: true
     dependencies:
       '@eslint-community/regexpp': 4.10.0
-      '@typescript-eslint/parser': 7.10.0(eslint@8.56.0)(typescript@5.4.5)
-      '@typescript-eslint/scope-manager': 7.10.0
-      '@typescript-eslint/type-utils': 7.10.0(eslint@8.56.0)(typescript@5.4.5)
-      '@typescript-eslint/utils': 7.10.0(eslint@8.56.0)(typescript@5.4.5)
-      '@typescript-eslint/visitor-keys': 7.10.0
-      eslint: 8.56.0
+      '@typescript-eslint/parser': 8.1.0(eslint@9.9.0)(typescript@5.4.5)
+      '@typescript-eslint/scope-manager': 8.1.0
+      '@typescript-eslint/type-utils': 8.1.0(eslint@9.9.0)(typescript@5.4.5)
+      '@typescript-eslint/utils': 8.1.0(eslint@9.9.0)(typescript@5.4.5)
+      '@typescript-eslint/visitor-keys': 8.1.0
+      eslint: 9.9.0
       graphemer: 1.4.0
       ignore: 5.3.1
       natural-compare: 1.4.0
@@ -597,71 +611,70 @@ packages:
       - supports-color
     dev: true
 
-  /@typescript-eslint/parser@7.10.0(eslint@8.56.0)(typescript@5.4.5):
-    resolution: {integrity: sha512-2EjZMA0LUW5V5tGQiaa2Gys+nKdfrn2xiTIBLR4fxmPmVSvgPcKNW+AE/ln9k0A4zDUti0J/GZXMDupQoI+e1w==}
-    engines: {node: ^18.18.0 || >=20.0.0}
+  /@typescript-eslint/parser@8.1.0(eslint@9.9.0)(typescript@5.4.5):
+    resolution: {integrity: sha512-U7iTAtGgJk6DPX9wIWPPOlt1gO57097G06gIcl0N0EEnNw8RGD62c+2/DiP/zL7KrkqnnqF7gtFGR7YgzPllTA==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     peerDependencies:
-      eslint: ^8.56.0
+      eslint: ^8.57.0 || ^9.0.0
       typescript: '*'
     peerDependenciesMeta:
       typescript:
         optional: true
     dependencies:
-      '@typescript-eslint/scope-manager': 7.10.0
-      '@typescript-eslint/types': 7.10.0
-      '@typescript-eslint/typescript-estree': 7.10.0(typescript@5.4.5)
-      '@typescript-eslint/visitor-keys': 7.10.0
+      '@typescript-eslint/scope-manager': 8.1.0
+      '@typescript-eslint/types': 8.1.0
+      '@typescript-eslint/typescript-estree': 8.1.0(typescript@5.4.5)
+      '@typescript-eslint/visitor-keys': 8.1.0
       debug: 4.3.4
-      eslint: 8.56.0
+      eslint: 9.9.0
       typescript: 5.4.5
     transitivePeerDependencies:
       - supports-color
     dev: true
 
-  /@typescript-eslint/scope-manager@7.10.0:
-    resolution: {integrity: sha512-7L01/K8W/VGl7noe2mgH0K7BE29Sq6KAbVmxurj8GGaPDZXPr8EEQ2seOeAS+mEV9DnzxBQB6ax6qQQ5C6P4xg==}
-    engines: {node: ^18.18.0 || >=20.0.0}
+  /@typescript-eslint/scope-manager@8.1.0:
+    resolution: {integrity: sha512-DsuOZQji687sQUjm4N6c9xABJa7fjvfIdjqpSIIVOgaENf2jFXiM9hIBZOL3hb6DHK9Nvd2d7zZnoMLf9e0OtQ==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     dependencies:
-      '@typescript-eslint/types': 7.10.0
-      '@typescript-eslint/visitor-keys': 7.10.0
+      '@typescript-eslint/types': 8.1.0
+      '@typescript-eslint/visitor-keys': 8.1.0
     dev: true
 
-  /@typescript-eslint/type-utils@7.10.0(eslint@8.56.0)(typescript@5.4.5):
-    resolution: {integrity: sha512-D7tS4WDkJWrVkuzgm90qYw9RdgBcrWmbbRkrLA4d7Pg3w0ttVGDsvYGV19SH8gPR5L7OtcN5J1hTtyenO9xE9g==}
-    engines: {node: ^18.18.0 || >=20.0.0}
+  /@typescript-eslint/type-utils@8.1.0(eslint@9.9.0)(typescript@5.4.5):
+    resolution: {integrity: sha512-oLYvTxljVvsMnldfl6jIKxTaU7ok7km0KDrwOt1RHYu6nxlhN3TIx8k5Q52L6wR33nOwDgM7VwW1fT1qMNfFIA==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     peerDependencies:
-      eslint: ^8.56.0
       typescript: '*'
     peerDependenciesMeta:
       typescript:
         optional: true
     dependencies:
-      '@typescript-eslint/typescript-estree': 7.10.0(typescript@5.4.5)
-      '@typescript-eslint/utils': 7.10.0(eslint@8.56.0)(typescript@5.4.5)
+      '@typescript-eslint/typescript-estree': 8.1.0(typescript@5.4.5)
+      '@typescript-eslint/utils': 8.1.0(eslint@9.9.0)(typescript@5.4.5)
       debug: 4.3.4
-      eslint: 8.56.0
       ts-api-utils: 1.3.0(typescript@5.4.5)
       typescript: 5.4.5
     transitivePeerDependencies:
+      - eslint
       - supports-color
     dev: true
 
-  /@typescript-eslint/types@7.10.0:
-    resolution: {integrity: sha512-7fNj+Ya35aNyhuqrA1E/VayQX9Elwr8NKZ4WueClR3KwJ7Xx9jcCdOrLW04h51de/+gNbyFMs+IDxh5xIwfbNg==}
-    engines: {node: ^18.18.0 || >=20.0.0}
+  /@typescript-eslint/types@8.1.0:
+    resolution: {integrity: sha512-q2/Bxa0gMOu/2/AKALI0tCKbG2zppccnRIRCW6BaaTlRVaPKft4oVYPp7WOPpcnsgbr0qROAVCVKCvIQ0tbWog==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     dev: true
 
-  /@typescript-eslint/typescript-estree@7.10.0(typescript@5.4.5):
-    resolution: {integrity: sha512-LXFnQJjL9XIcxeVfqmNj60YhatpRLt6UhdlFwAkjNc6jSUlK8zQOl1oktAP8PlWFzPQC1jny/8Bai3/HPuvN5g==}
-    engines: {node: ^18.18.0 || >=20.0.0}
+  /@typescript-eslint/typescript-estree@8.1.0(typescript@5.4.5):
+    resolution: {integrity: sha512-NTHhmufocEkMiAord/g++gWKb0Fr34e9AExBRdqgWdVBaKoei2dIyYKD9Q0jBnvfbEA5zaf8plUFMUH6kQ0vGg==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     peerDependencies:
       typescript: '*'
     peerDependenciesMeta:
       typescript:
         optional: true
     dependencies:
-      '@typescript-eslint/types': 7.10.0
-      '@typescript-eslint/visitor-keys': 7.10.0
+      '@typescript-eslint/types': 8.1.0
+      '@typescript-eslint/visitor-keys': 8.1.0
       debug: 4.3.4
       globby: 11.1.0
       is-glob: 4.0.3
@@ -673,44 +686,40 @@ packages:
       - supports-color
     dev: true
 
-  /@typescript-eslint/utils@7.10.0(eslint@8.56.0)(typescript@5.4.5):
-    resolution: {integrity: sha512-olzif1Fuo8R8m/qKkzJqT7qwy16CzPRWBvERS0uvyc+DHd8AKbO4Jb7kpAvVzMmZm8TrHnI7hvjN4I05zow+tg==}
-    engines: {node: ^18.18.0 || >=20.0.0}
+  /@typescript-eslint/utils@8.1.0(eslint@9.9.0)(typescript@5.4.5):
+    resolution: {integrity: sha512-ypRueFNKTIFwqPeJBfeIpxZ895PQhNyH4YID6js0UoBImWYoSjBsahUn9KMiJXh94uOjVBgHD9AmkyPsPnFwJA==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     peerDependencies:
-      eslint: ^8.56.0
+      eslint: ^8.57.0 || ^9.0.0
     dependencies:
-      '@eslint-community/eslint-utils': 4.4.0(eslint@8.56.0)
-      '@typescript-eslint/scope-manager': 7.10.0
-      '@typescript-eslint/types': 7.10.0
-      '@typescript-eslint/typescript-estree': 7.10.0(typescript@5.4.5)
-      eslint: 8.56.0
+      '@eslint-community/eslint-utils': 4.4.0(eslint@9.9.0)
+      '@typescript-eslint/scope-manager': 8.1.0
+      '@typescript-eslint/types': 8.1.0
+      '@typescript-eslint/typescript-estree': 8.1.0(typescript@5.4.5)
+      eslint: 9.9.0
     transitivePeerDependencies:
       - supports-color
       - typescript
     dev: true
 
-  /@typescript-eslint/visitor-keys@7.10.0:
-    resolution: {integrity: sha512-9ntIVgsi6gg6FIq9xjEO4VQJvwOqA3jaBFQJ/6TK5AvEup2+cECI6Fh7QiBxmfMHXU0V0J4RyPeOU1VDNzl9cg==}
-    engines: {node: ^18.18.0 || >=20.0.0}
+  /@typescript-eslint/visitor-keys@8.1.0:
+    resolution: {integrity: sha512-ba0lNI19awqZ5ZNKh6wCModMwoZs457StTebQ0q1NP58zSi2F6MOZRXwfKZy+jB78JNJ/WH8GSh2IQNzXX8Nag==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     dependencies:
-      '@typescript-eslint/types': 7.10.0
+      '@typescript-eslint/types': 8.1.0
       eslint-visitor-keys: 3.4.3
     dev: true
 
-  /@ungap/structured-clone@1.2.0:
-    resolution: {integrity: sha512-zuVdFrMJiuCDQUMCzQaD6KL28MjnqqN8XnAqiEq9PNm/hCPTSGfrXCOfwj1ow4LFb/tNymJPwsNbVePc1xFqrQ==}
-    dev: true
-
-  /acorn-jsx@5.3.2(acorn@8.11.2):
+  /acorn-jsx@5.3.2(acorn@8.12.1):
     resolution: {integrity: sha512-rq9s+JNhf0IChjtDXxllJ7g41oZk5SlXtp0LHwyA5cejwn7vKmKp4pPri6YEePv2PU65sAsegbXtIinmDFDXgQ==}
     peerDependencies:
       acorn: ^6.0.0 || ^7.0.0 || ^8.0.0
     dependencies:
-      acorn: 8.11.2
+      acorn: 8.12.1
     dev: true
 
-  /acorn@8.11.2:
-    resolution: {integrity: sha512-nc0Axzp/0FILLEVsm4fNwLCwMttvhEI263QtVPQcbpfZZ3ts0hLsZGOpE6czNlid7CJ9MlyH8reXkpsf3YUY4w==}
+  /acorn@8.12.1:
+    resolution: {integrity: sha512-tcpGyI9zbizT9JbV6oYE477V6mTlXvvi0T0G3SNIYE2apm/G5huBa1+K89VGeovbg+jycCrfhl3ADxErOuO6Jg==}
     engines: {node: '>=0.4.0'}
     hasBin: true
     dev: true
@@ -852,13 +861,6 @@ packages:
       path-type: 4.0.0
     dev: true
 
-  /doctrine@3.0.0:
-    resolution: {integrity: sha512-yS+Q5i3hBf7GBkd4KG8a7eBNNWNGLTaEwwYWUijIYM7zrlYDM0BFXHjjPWlWZ1Rg7UaddZeIDmi9jF3HmqiQ2w==}
-    engines: {node: '>=6.0.0'}
-    dependencies:
-      esutils: 2.0.3
-    dev: true
-
   /eastasianwidth@0.2.0:
     resolution: {integrity: sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==}
     dev: true
@@ -911,18 +913,18 @@ packages:
     engines: {node: '>=10'}
     dev: true
 
-  /eslint-config-prettier@9.1.0(eslint@8.56.0):
+  /eslint-config-prettier@9.1.0(eslint@9.9.0):
     resolution: {integrity: sha512-NSWl5BFQWEPi1j4TjVNItzYV7dZXZ+wP6I6ZhrBGpChQhZRUaElihE9uRRkcbRnNb76UMKDF3r+WTmNcGPKsqw==}
     hasBin: true
     peerDependencies:
       eslint: '>=7.0.0'
     dependencies:
-      eslint: 8.56.0
+      eslint: 9.9.0
     dev: true
 
-  /eslint-scope@7.2.2:
-    resolution: {integrity: sha512-dOt21O7lTMhDM+X9mB4GX+DZrZtCUJPL/wlcTqxyrx5IvO0IYtILdtrQGQp+8n5S0gwSVmOf9NQrjMOgfQZlIg==}
-    engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
+  /eslint-scope@8.0.2:
+    resolution: {integrity: sha512-6E4xmrTw5wtxnLA5wYL3WDfhZ/1bUBGOXV0zQvVRDOtrR8D0p6W7fs3JweNYhwRYeGvd/1CKX2se0/2s7Q/nJA==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     dependencies:
       esrecurse: 4.3.0
       estraverse: 5.3.0
@@ -933,41 +935,47 @@ packages:
     engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
     dev: true
 
-  /eslint@8.56.0:
-    resolution: {integrity: sha512-Go19xM6T9puCOWntie1/P997aXxFsOi37JIHRWI514Hc6ZnaHGKY9xFhrU65RT6CcBEzZoGG1e6Nq+DT04ZtZQ==}
-    engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
+  /eslint-visitor-keys@4.0.0:
+    resolution: {integrity: sha512-OtIRv/2GyiF6o/d8K7MYKKbXrOUBIK6SfkIRM4Z0dY3w+LiQ0vy3F57m0Z71bjbyeiWFiHJ8brqnmE6H6/jEuw==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+    dev: true
+
+  /eslint@9.9.0:
+    resolution: {integrity: sha512-JfiKJrbx0506OEerjK2Y1QlldtBxkAlLxT5OEcRF8uaQ86noDe2k31Vw9rnSWv+MXZHj7OOUV/dA0AhdLFcyvA==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     hasBin: true
+    peerDependencies:
+      jiti: '*'
+    peerDependenciesMeta:
+      jiti:
+        optional: true
     dependencies:
-      '@eslint-community/eslint-utils': 4.4.0(eslint@8.56.0)
-      '@eslint-community/regexpp': 4.10.0
-      '@eslint/eslintrc': 2.1.4
-      '@eslint/js': 8.56.0
-      '@humanwhocodes/config-array': 0.11.13
+      '@eslint-community/eslint-utils': 4.4.0(eslint@9.9.0)
+      '@eslint-community/regexpp': 4.11.0
+      '@eslint/config-array': 0.17.1
+      '@eslint/eslintrc': 3.1.0
+      '@eslint/js': 9.9.0
       '@humanwhocodes/module-importer': 1.0.1
+      '@humanwhocodes/retry': 0.3.0
       '@nodelib/fs.walk': 1.2.8
-      '@ungap/structured-clone': 1.2.0
       ajv: 6.12.6
       chalk: 4.1.2
       cross-spawn: 7.0.3
       debug: 4.3.4
-      doctrine: 3.0.0
       escape-string-regexp: 4.0.0
-      eslint-scope: 7.2.2
-      eslint-visitor-keys: 3.4.3
-      espree: 9.6.1
+      eslint-scope: 8.0.2
+      eslint-visitor-keys: 4.0.0
+      espree: 10.1.0
       esquery: 1.5.0
       esutils: 2.0.3
       fast-deep-equal: 3.1.3
-      file-entry-cache: 6.0.1
+      file-entry-cache: 8.0.0
       find-up: 5.0.0
       glob-parent: 6.0.2
-      globals: 13.24.0
-      graphemer: 1.4.0
-      ignore: 5.2.0
+      ignore: 5.3.1
       imurmurhash: 0.1.4
       is-glob: 4.0.3
       is-path-inside: 3.0.3
-      js-yaml: 4.1.0
       json-stable-stringify-without-jsonify: 1.0.1
       levn: 0.4.1
       lodash.merge: 4.6.2
@@ -980,13 +988,13 @@ packages:
       - supports-color
     dev: true
 
-  /espree@9.6.1:
-    resolution: {integrity: sha512-oruZaFkjorTpF32kDSI5/75ViwGeZginGGy2NoOSg3Q9bnwlnmDm4HLnkl0RE3n+njDXR037aY1+x58Z/zFdwQ==}
-    engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
+  /espree@10.1.0:
+    resolution: {integrity: sha512-M1M6CpiE6ffoigIOWYO9UDP8TMUw9kqb21tf+08IgDYjCsOvCuDt4jQcZmoYxx+w7zlKw9/N0KXfto+I8/FrXA==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     dependencies:
-      acorn: 8.11.2
-      acorn-jsx: 5.3.2(acorn@8.11.2)
-      eslint-visitor-keys: 3.4.3
+      acorn: 8.12.1
+      acorn-jsx: 5.3.2(acorn@8.12.1)
+      eslint-visitor-keys: 4.0.0
     dev: true
 
   /esquery@1.5.0:
@@ -1046,11 +1054,11 @@ packages:
       reusify: 1.0.4
     dev: true
 
-  /file-entry-cache@6.0.1:
-    resolution: {integrity: sha512-7Gps/XWymbLk2QLYK4NzpMOrYjMhdIxXuIvy2QBsLE6ljuodKvdkWs/cpyJJ3CVIVpH0Oi1Hvg1ovbMzLdFBBg==}
-    engines: {node: ^10.12.0 || >=12.0.0}
+  /file-entry-cache@8.0.0:
+    resolution: {integrity: sha512-XXTUwCvisa5oacNGRP9SfNtYBNAMi+RPwBFmblZEF7N7swHYQS6/Zfk7SRwx4D5j3CH211YNRco1DEMNVfZCnQ==}
+    engines: {node: '>=16.0.0'}
     dependencies:
-      flat-cache: 3.0.4
+      flat-cache: 4.0.1
     dev: true
 
   /fill-range@7.1.1:
@@ -1068,16 +1076,16 @@ packages:
       path-exists: 4.0.0
     dev: true
 
-  /flat-cache@3.0.4:
-    resolution: {integrity: sha512-dm9s5Pw7Jc0GvMYbshN6zchCA9RgQlzzEZX3vylR9IqFfS8XciblUXOKfW6SiuJ0e13eDYZoZV5wdrev7P3Nwg==}
-    engines: {node: ^10.12.0 || >=12.0.0}
+  /flat-cache@4.0.1:
+    resolution: {integrity: sha512-f7ccFPK3SXFHpx15UIGyRJ/FJQctuKZ0zVuN3frBo4HnK3cay9VEW0R6yPYFHC0AgqhukPzKjq22t5DmAyqGyw==}
+    engines: {node: '>=16'}
     dependencies:
-      flatted: 3.2.7
-      rimraf: 3.0.2
+      flatted: 3.3.1
+      keyv: 4.5.4
     dev: true
 
-  /flatted@3.2.7:
-    resolution: {integrity: sha512-5nqDSxl8nn5BSNxyR3n4I6eDmbolI6WT+QqR547RwxQapgjQBmtktdP+HTBb/a/zLsbzERTONyUB5pefh5TtjQ==}
+  /flatted@3.3.1:
+    resolution: {integrity: sha512-X8cqMLLie7KsNUDSdzeN8FYK9rEt4Dt67OsG/DNGnYTSDBG4uFAJFBnUeiV+zCVAvwFy56IjM9sH51jVaEhNxw==}
     dev: true
 
   /foreground-child@3.1.1:
@@ -1163,11 +1171,14 @@ packages:
       once: 1.4.0
     dev: true
 
-  /globals@13.24.0:
-    resolution: {integrity: sha512-AhO5QUcj8llrbG09iWhPU2B204J1xnPeL8kQmVorSsy+Sjj1sk8gIyh6cUocGmH4L0UuhAJy+hJMRA4mgA4mFQ==}
-    engines: {node: '>=8'}
-    dependencies:
-      type-fest: 0.20.2
+  /globals@14.0.0:
+    resolution: {integrity: sha512-oahGvuMGQlPw/ivIYBjVSrWAfWLBeku5tpPE2fOPLi+WHffIWbuh2tCjhyQhTBPMf5E9jDEH4FOmTYgYwbKwtQ==}
+    engines: {node: '>=18'}
+    dev: true
+
+  /globals@15.9.0:
+    resolution: {integrity: sha512-SmSKyLLKFbSr6rptvP8izbyxJL4ILwqO9Jg23UA0sDlGlu58V59D1//I3vlc0KJphVdUR7vMjHIplYnzBxorQA==}
+    engines: {node: '>=18'}
     dev: true
 
   /globalyzer@0.1.0:
@@ -1217,11 +1228,6 @@ packages:
     engines: {node: '>=8'}
     dev: true
 
-  /ignore@5.2.0:
-    resolution: {integrity: sha512-CmxgYGiEPCLhfLnpPp1MoRmifwEIOgjcHXxOBjv7mY96c+eWScsOP9c112ZyLdWHi0FxHjI+4uVhKYp/gcdRmQ==}
-    engines: {node: '>= 4'}
-    dev: true
-
   /ignore@5.3.1:
     resolution: {integrity: sha512-5Fytz/IraMjqpwfd34ke28PTVMjZjJG2MPn5t7OE4eUCUNf8BAa7b5WUS9/Qvr6mwOQS7Mk6vdsMno5he+T8Xw==}
     engines: {node: '>= 4'}
@@ -1313,6 +1319,10 @@ packages:
       argparse: 2.0.1
     dev: true
 
+  /json-buffer@3.0.1:
+    resolution: {integrity: sha512-4bV5BfR2mqfQTJm+V5tPPdf+ZpuhiIvTuAB5g8kcrXOZpTT/QwwVRWBywX1ozr6lEuPdbHxwaJlm9G6mI2sfSQ==}
+    dev: true
+
   /json-schema-traverse@0.4.1:
     resolution: {integrity: sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==}
     dev: true
@@ -1327,6 +1337,12 @@ packages:
       graceful-fs: 4.2.11
     dev: true
 
+  /keyv@4.5.4:
+    resolution: {integrity: sha512-oxVHkHR/EJf2CNXnWxRLW6mg7JyCCUcG0DtEGmL2ctUo1PNTin1PUil+r/+4r5MpVgC/fn1kjsx7mjSujKqIpw==}
+    dependencies:
+      json-buffer: 3.0.1
+    dev: true
+
   /levn@0.4.1:
     resolution: {integrity: sha512-+bT2uH4E5LGE7h/n3evcS/sQlJXCpIp6ym8OWJ5eV6+67Dsql/LaaT7qJBAt2rzfoa/5QBGBhxDix1dMt2kQKQ==}
     engines: {node: '>= 0.8.0'}
@@ -1538,13 +1554,6 @@ packages:
     engines: {iojs: '>=1.0.0', node: '>=0.10.0'}
     dev: true
 
-  /rimraf@3.0.2:
-    resolution: {integrity: sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==}
-    hasBin: true
-    dependencies:
-      glob: 7.1.7
-    dev: true
-
   /rollup-plugin-copy@3.5.0:
     resolution: {integrity: sha512-wI8D5dvYovRMx/YYKtUNt3Yxaw4ORC9xo6Gt9t22kveWz1enG9QrhVlagzwrxSC455xD1dHMKhIJkbsQ7d48BA==}
     engines: {node: '>=8.3'}
@@ -1715,9 +1724,22 @@ packages:
       prelude-ls: 1.2.1
     dev: true
 
-  /type-fest@0.20.2:
-    resolution: {integrity: sha512-Ne+eE4r0/iWnpAxD852z3A+N0Bt5RN//NjJwRd2VFHEmrywxf5vsZlh4R6lixl6B+wz/8d+maTSAkN1FIkI3LQ==}
-    engines: {node: '>=10'}
+  /typescript-eslint@8.1.0(eslint@9.9.0)(typescript@5.4.5):
+    resolution: {integrity: sha512-prB2U3jXPJLpo1iVLN338Lvolh6OrcCZO+9Yv6AR+tvegPPptYCDBIHiEEUdqRi8gAv2bXNKfMUrgAd2ejn/ow==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+    peerDependencies:
+      typescript: '*'
+    peerDependenciesMeta:
+      typescript:
+        optional: true
+    dependencies:
+      '@typescript-eslint/eslint-plugin': 8.1.0(@typescript-eslint/parser@8.1.0)(eslint@9.9.0)(typescript@5.4.5)
+      '@typescript-eslint/parser': 8.1.0(eslint@9.9.0)(typescript@5.4.5)
+      '@typescript-eslint/utils': 8.1.0(eslint@9.9.0)(typescript@5.4.5)
+      typescript: 5.4.5
+    transitivePeerDependencies:
+      - eslint
+      - supports-color
     dev: true
 
   /typescript@5.4.5:
diff --git a/src/jcanvas.ts b/src/jcanvas.ts
index fde6a5b..cd49fa6 100644
--- a/src/jcanvas.ts
+++ b/src/jcanvas.ts
@@ -248,7 +248,7 @@ function isString(operand: any): operand is string {
 }
 
 // Determines if the given operand is a function
-function isFunction(operand: any): operand is Function {
+function isFunction(operand: any): operand is (...args: any) => any {
 	return typeOf(operand) === "function";
 }
 
diff --git a/tests/.eslintrc.json b/tests/.eslintrc.json
deleted file mode 100644
index 470b7d3..0000000
--- a/tests/.eslintrc.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "env": {
-    "jquery": true,
-    "qunit": true
-  }
-}