Question

这是我用字典写成的法典:

class Snake {
constructor(
    public x: number,       // error  x  is defined but never used
    public y: number,       // error  y  is defined but never used
    public size = 10,       // error  size  is assigned a value but never used
    public color = (() => { 
        const tab = new Array(6).fill(0);
        return `#${tab.map(() => (Math.random() * 0xF << 0).toString(16)).join(  )}`;
    })(),                   // error  color  is assigned a value but never used
) { }

update() {
    const coef = (): number => {
        const nb = Math.round(Math.random());
        return nb === 0 ? -1 : 1;
    };
    this.x += Math.random() * 10 * coef();
    this.y += Math.random() * 10 * coef();
}
...

I got eslint installed and it tells me for all the variables : is defined but never used and right under it I use them. I think eslint doesn t understand the declaration inside the constructor parentheses but I m not sure. I use this method of declaration very often so if I can fix this it I ll be happy

{
"env": {
    "browser": true,
    "es2021": true
},
"extends": [
    "airbnb-base"
],
"parser": "@typescript-eslint/parser",
"parserOptions": {
    "ecmaVersion": "latest",
    "sourceType": "module"
},
"plugins": [
    "@typescript-eslint"
],
"rules": {
    "no-restricted-globals": "off",
    "consistent-return": "off", 
    "no-return-assign": "off", 
    "prefer-const": "off", 
    "no-param-reassign": "off", 
    "block-scoped-var": "off", 
    "no-use-before-define": "off", 
    "no-undef": "warn", 
    "no-unused-vars": "warn", 
    "no-plusplus": "off", 
    "no-var": "off", 
    "vars-on-top": "off", 
    "indent": [
        "error",
        4
    ], 
    "no-console": "off", 
    "no-mixed-spaces-and-tabs": "off", 
    "linebreak-style": "off", window
    "class-methods-use-this": "off", 
    "no-empty": "off", 
    "no-constant-condition": "off", 
    "nonblock-statement-body-position": [
        "error",
        "below"
    ], 
    "curly": "off", 
    "no-useless-constructor": "off",
    "no-empty-function": "off",
    "no-bitwise": "off"
}

这里是我的先辈,错误来自未使用过的瓦尔斯。

Answer 1

以下线有错误:

"linebreak-style": "off", window

<代码>window

应当:

"linebreak-style": "off",

否则,从今天看,lin星座就显得无效。

Answer 2

之所以存在这一问题,是因为ESLint与规则相违背(应当予以撤销):

 no-unused-vars :  off ,

因此,规则表格@typescript-eslint/eslint-plugin 应当使用原始材料:

 typescriptEslintPlugin/no-unused-vars :  error ,

That s it. Here is example flat config for ESLint 9 wtih this setup:

import eslintJsPlugin from  @eslint/js ;
import typescriptEslintPlugin from  @typescript-eslint/eslint-plugin ;
import typescriptParser from  @typescript-eslint/parser ;
import globals from  globals ;

export default [
  // global config, applied to all configurations
  {
    files = [ **/*.ts ],
    languageOptions: {
      ecmaVersion:  latest ,
      sourceType:  module ,
      parser: typescriptParser,
      globals: {
        ...globals.node,
      },
    },
  },
  // recommended config with rules
  eslintJsPlugin.configs.recommended,
  {
    rules: {
       no-unused-vars :  off ,
    },
  },
  // configs for plugins with overridden rules
  {
    plugins: {
      typescriptEslintPlugin,
    },
    rules: {
      ...typescriptEslintPlugin.configs[ eslint-recommended ].rules,
       typescriptEslintPlugin/explicit-function-return-type :  error ,
       typescriptEslintPlugin/no-unused-vars :  error ,
    },
  },
];

值得补充的是,2024 Q2 @typescript-eslint/eslint-plugin。页: 1

这个员额是用户@Bergi

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