feat: add typescript-eslint (#85)

Author: adamalston

.commitlintrc.cjs .commitlintrc.mjs

@@ -1,4 +1,4 @@
-module.exports = {
+export default {
   extends: ['@commitlint/config-conventional'],
   rules: {
     // Sets the maximum length for commit messages. It accounts for a 3-digit PR

.eslintrc.cjs

@@ -1,4 +1,4 @@
-module.exports = {
+export default {
   '*.{cjs,js,jsx,ts,tsx}': [
     'eslint --cache --fix --max-warnings 0',
     'prettier --cache --write',

.lintstagedrc.cjs .lintstagedrc.mjs

@@ -1,4 +1,4 @@
 /** @type {import("prettier").Config} */
-module.exports = {
+export default {
   singleQuote: true,
 };

.prettierrc.cjs .prettierrc.mjs

@@ -1,3 +1,3 @@
-module.exports = {
+export default {
   extends: ['stylelint-config-standard-scss', 'stylelint-config-prettier-scss'],
 };

.stylelintrc.cjs .stylelintrc.mjs

@@ -0,0 +1,20 @@
+// @ts-check
+
+import eslint from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+  eslint.configs.recommended,
+  tseslint.configs.strict,
+  tseslint.configs.stylistic,
+  { ignores: ['build', 'deprecated'] },
+  {
+    rules: {
+      eqeqeq: 'error',
+      '@typescript-eslint/no-empty-function': [
+        'error',
+        { allow: ['arrowFunctions'] },
+      ],
+    },
+  },
+);

eslint.config.mjs

@@ -20,6 +20,7 @@
   "devDependencies": {
     "@commitlint/cli": "^19.6.0",
     "@commitlint/config-conventional": "^19.6.0",
+    "@eslint/js": "^9.15.0",
     "@testing-library/jest-dom": "^6.6.3",
     "@testing-library/react": "^16.0.1",
     "@testing-library/user-event": "^14.5.2",
@@ -37,7 +38,8 @@
     "stylelint": "^16.11.0",
     "stylelint-config-prettier-scss": "^1.0.0",
     "stylelint-config-standard-scss": "^13.1.0",
-    "typescript": "^4.9.5"
+    "typescript": "^4.9.5",
+    "typescript-eslint": "^8.16.0"
   },
   "jest": {
     "collectCoverageFrom": [