update eslint rules

Author: pherum

.eslintrc.js

@@ -0,0 +1,108 @@
+{
+    "extends": ["prettier"],
+    "parser": "@typescript-eslint/parser",
+    "plugins": ["@typescript-eslint", "prettier"],
+    "parserOptions": {
+        "ecmaVersion": "latest",
+        "sourceType": "module",
+        "ecmaFeatures": {
+            "jsx": true
+        }
+    },
+    "rules": {
+        "@typescript-eslint/member-ordering": [
+            "warn",
+            {
+                "default": [
+                    "private-static-field",
+                    "protected-static-field",
+                    "public-static-field",
+                    "private-static-method",
+                    "protected-static-method",
+                    "public-static-method",
+                    "private-instance-field",
+                    "protected-instance-field",
+                    "public-instance-field",
+                    "private-constructor",
+                    "protected-constructor",
+                    "public-constructor",
+                    "private-instance-method",
+                    "protected-instance-method",
+                    "public-instance-method"
+                ]
+            }
+        ],
+        "array-bracket-newline": [
+            "warn",
+            {
+                "multiline": true
+            }
+        ],
+        "array-bracket-spacing": ["warn", "never"],
+        "arrow-body-style": ["warn", "as-needed"],
+        "block-spacing": ["warn", "always"],
+        "camelcase": [
+            "off",
+            {
+                "properties": "never"
+            }
+        ],
+        "comma-dangle": [
+            "warn",
+            {
+                "arrays": "only-multiline",
+                "objects": "only-multiline",
+                "imports": "only-multiline",
+                "exports": "only-multiline",
+                "functions": "only-multiline"
+            }
+        ],
+        "dot-notation": "warn",
+        "eol-last": ["warn", "always"],
+        "eqeqeq": ["error", "always"],
+        "indent": [
+            "warn",
+            4,
+            {
+                "SwitchCase": 1,
+                "ignoreComments": true
+            }
+        ],
+        "jsx-quotes": ["warn", "prefer-double"],
+        "linebreak-style": ["error", "unix"],
+        "no-console": "error",
+        "no-extra-semi": "error",
+        "no-multi-spaces": ["warn"],
+        "no-tabs": ["warn"],
+        "no-trailing-spaces": ["warn", { "ignoreComments": true }],
+        "no-unused-expressions": [
+            "warn",
+            {
+                "allowShortCircuit": true
+            }
+        ],
+        "prettier/prettier": [
+            "warn",
+            {
+                "usePrettierrc": true
+            }
+        ],
+        "quotes": [
+            "warn",
+            "single",
+            {
+                "avoidEscape": true
+            }
+        ],
+        "require-await": "error",
+        "semi": ["warn", "always"],
+        "use-isnan": [
+            "error",
+            {
+                "enforceForSwitchCase": true
+            }
+        ],
+        "valid-typeof": "warn",
+        "yoda": ["error", "never"]
+    }
+}

.eslintrc.json

@@ -19,6 +19,6 @@ jobs:
             uses: actions/setup-node@v3
             with:
                node-version: '22'
-         -  run: yarn install
+         -  run: yarn install --ignore-scripts
          -  run: yarn lint
          -  run: yarn test

.github/workflows/tests.yaml

@@ -1,9 +1,2 @@
-#!/usr/bin/env sh
-. "$(dirname -- "$0")/_/husky.sh"
-
-bash << EOF
-npm run count
-git add README.md
-EOF
-
 npx lint-staged
+git update-index --again

.husky/pre-commit

@@ -0,0 +1,15 @@
+{
+    "arrowParens": "always",
+    "bracketSameLine": true,
+    "bracketSpacing": true,
+    "endOfLine": "lf",
+    "jsxSingleQuote": false,
+    "printWidth": 140,
+    "semi": true,
+    "singleAttributePerLine": false,
+    "singleQuote": true,
+    "tabWidth": 4,
+    "trailingComma": "all",
+    "useTabs": false,
+    "proseWrap": "preserve"
+}

.prettierrc.js

@@ -1,7 +1,7 @@
-import { arrayDiff } from "./index";
+import { arrayDiff } from './index';
 
-describe("Basic tests", () => {
-    it("Basic test should work", () => {
+describe('Basic tests', () => {
+    it('Basic test should work', () => {
         expect(arrayDiff([], [4, 5])).toStrictEqual([]);
         expect(arrayDiff([3, 4], [3])).toStrictEqual([4]);
         expect(arrayDiff([1, 8, 2], [])).toStrictEqual([1, 8, 2]);

.prettierrc.json

@@ -1,7 +1,7 @@
-import { countBits } from "./index";
+import { countBits } from './index';
 
-describe("Tests", () => {
-    it("example", () => {
+describe('Tests', () => {
+    it('example', () => {
         expect(countBits(1234)).toBe(5);
         expect(countBits(0)).toBe(0);
         expect(countBits(4)).toBe(1);

6_kyu/Array.diff/index.test.ts

@@ -1,8 +1,8 @@
 export function countBits(n: number): number {
     const numbers = n
         .toString(2)
-        .split("")
-        .filter((n) => n === "1");
+        .split('')
+        .filter((n) => n === '1');
 
     return numbers.length;
 }

6_kyu/Bit Counting/index.test.ts

@@ -1,10 +1,10 @@
-import { toCamelCase } from "./index";
+import { toCamelCase } from './index';
 
-describe("Tests", () => {
-    it("example", () => {
-        expect(toCamelCase("")).toBe("");
-        expect(toCamelCase("the_stealth_warrior")).toBe("theStealthWarrior");
-        expect(toCamelCase("The-Stealth-Warrior")).toBe("TheStealthWarrior");
-        expect(toCamelCase("A-B-C")).toBe("ABC");
+describe('Tests', () => {
+    it('example', () => {
+        expect(toCamelCase('')).toBe('');
+        expect(toCamelCase('the_stealth_warrior')).toBe('theStealthWarrior');
+        expect(toCamelCase('The-Stealth-Warrior')).toBe('TheStealthWarrior');
+        expect(toCamelCase('A-B-C')).toBe('ABC');
     });
 });