Add eslint (#99)

Author: simonespa

eslint.config.js

@@ -0,0 +1,11 @@
+import js from "@eslint/js";
+import globals from "globals";
+import tseslint from "typescript-eslint";
+import { defineConfig } from "eslint/config";
+
+
+export default defineConfig([
+  { files: ["**/*.{js,mjs,cjs,ts,mts,cts}"], plugins: { js }, extends: ["js/recommended"] },
+  { files: ["**/*.{js,mjs,cjs,ts,mts,cts}"], languageOptions: { globals: globals.browser } },
+  tseslint.configs.recommended,
+]);

package.json

@@ -6,20 +6,25 @@
   "scripts": {
     "clean": "rm -rf .nyc_output coverage dist",
     "test": "nyc mocha 'src/**/*.test.ts' --require=tsx",
+    "lint": "eslint 'src/**/*.ts'",
     "coverage": "nyc report --reporter html && open coverage/index.html",
     "coverage:check": "nyc check-coverage --lines 90 --branches 80 --statements 90"
   },
   "packageManager": "[email protected]",
   "devDependencies": {
+    "@eslint/js": "^9.31.0",
     "@types/chai": "^5.2.2",
     "@types/mocha": "^10.0.10",
     "@types/sinon": "^17.0.4",
     "chai": "^5.2.1",
+    "eslint": "^9.31.0",
+    "globals": "^16.3.0",
     "mocha": "^11.7.1",
     "nyc": "^17.1.0",
     "sinon": "^21.0.0",
     "tsx": "^4.20.3",
-    "typescript": "^5.8.3"
+    "typescript": "^5.8.3",
+    "typescript-eslint": "^8.37.0"
   },
   "repository": {
     "type": "git",