.eslintrc.json

{
  "env": {
    "amd": true,
    "browser": true,
    "commonjs": true,
    "es6": true,
    "jquery": true,
    "jest": true,
    "mocha": true,
    "node": true,
    "serviceworker": true,
    "worker": true
  },
  "parserOptions": {
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "extends": "eslint:recommended",
  "globals": {
  },
  "rules": {
    "linebreak-style": [ 2, "unix" ],
    "semi": [ 1, "never", {"beforeStatementContinuationChars": "always"} ],
    "quotes": [ 2, "single" ],
    "no-unused-vars": 0,
    "no-mixed-spaces-and-tabs": [2],
    "no-use-before-define": [2,  {"functions": false, "classes": true }],  // 禁止在变量定义之前使用它们
    "curly": 2,	// 要求遵循大括号约定 
    "padding-line-between-statements": [  // 变量声明后空格
      "warn", 
      { "blankLine": "always", "prev": ["const", "let", "var"], "next": "*" },
      { "blankLine": "any", "prev": ["const", "let", "var"], "next": ["const", "let", "var"]}
    ],
    "eol-last": [1, "always"],
    "unicode-bom": [2, "never"],    // 禁止使用 Unicode 字节顺序标记 (BOM)
    "no-new-wrappers": 2,	// 禁止对 String，Number 和 Boolean 使用 new 操作符
    "no-useless-escape": 2,	// 禁用不必要的转义字符
    "no-new-object": 2,	// 禁止使用 Object 构造函数 new Object, 使用{}替代
    "no-delete-var": 2,	// 禁止删除变量
    "no-label-var": 2,	// 禁用与变量同名的标签
    "use-isnan": 2, // 要求使用 isNaN() 检查 NaN
    "no-caller": 2,
    "no-octal-escape": 2,
    "no-return-assign": 2,
    "no-return-await": 2,
    "no-self-compare": 2,
    "no-sequences": 2,
    "no-throw-literal": 2,
    "no-unmodified-loop-condition": 2,
    "no-array-constructor": 1,  // for let foo = <T> new Array()
    "no-confusing-arrow": ["error", {"allowParens": true}],
    "no-duplicate-imports": 2,
    "no-useless-computed-key": 0, // 0 for destructuring assignment
    "no-useless-constructor": 2,
    "no-useless-rename": 2,
    "no-console": 0
  }
}