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iot-vue3-eslint-config

v1.0.9

Published

IoT vue3 eslint config

Downloads

6

Readme

iot-vue3-eslint-config

使用方法

  1. 安装该配置文件

npm install iot-vue3-eslint-config

  1. 在项目的.eslintrc.jsextends中添加配置

.eslintrc.js

extends: [
    ...
    'iot-vue3-eslint-config'
]

规则详情

  • 可以对函数参数再赋值

'no-param-reassign': 'off'

  • 将块语句包装在花括号中来防止错误并提高代码清晰度

curly: ['error', 'all']

错误示例:

if (a) return false

正确示例:

if (a) {
    return false;
}
  • 要求参数有默认值的参数放在最后

'default-param-last': 'error'

错误示例:

function fn(a = 'a', b) {}

正确示例:

function fn(b, a = 'a') {}
  • 强制全等比较

eqeqeq: 'error'

错误示例:

if (a == b) {}

正确示例:

if (a === b) {}
  • 防止使用for in循环而不过滤循环中的结果时可能出现的意外行为

'guard-for-in': 'error'

错误示例:

for (key in foo) {
   doSomething(key);
}

正确示例:

for (key in foo) {
    if (Object.prototype.hasOwnProperty.call(foo, key)) {
        doSomething(key);
    }
    if ({}.hasOwnProperty.call(foo, key)) {
        doSomething(key);
    }
}
  • 禁止在构造函数中返回值

'no-constructor-return': 'error'

错误示例:

class P {
    constructor() {
        return false
    }
}
  • 突出显示if包含 return 语句后的不必要代码块

'no-else-return': 'warn'

错误示例:

function foo() {
    if (x) {
        return y;
    } else {
        return z;
    }
}

正确示例:

function foo() {
    if (x) {
        return y;
    }
     return z;
}
  • 不允许在顶级脚本作用域中声明var并命名function声明

'no-implicit-globals': 'error'

  • 禁止使用new不将结果对象分配给变量的关键字的构造函数调用

'no-new': 'warn'

错误示例:

new BScroll()

正确示例:

const bs = new BScroll()
  • 循环中条件未修改

'no-unmodified-loop-condition': 'error'

错误示例:

while (node) {
    doSomething(node);
}

正确示例:

while (node) {
    doSomething(node);
    node = node.parentNode;
}
  • 禁止没有await表达式的异步函数

'require-await': 'warn'

错误示例:

async function() {
    dosomething()
}

正确示例:

async function() {
    dosomething()
    await awaitFn()
}
  • 禁止在对象字面量中出现重复的键

'no-dupe-keys': 'error'

错误示例:

const obj = {
    a: 'a',
    a: 'b'
}

正确示例:

const obj = {
    b: 'a'
}
  • 允许console

'no-console': 'off',

  • 不允许使用常量做判断

'no-constant-condition': 'error'

错误示例:

if (true) {
    dosomething()
}
  • 不允许同一if-else-if链中出现重复条件

'no-dupe-else-if': 'error'

错误示例:

if (a) {
    b = 'b'
} else if (a) {
    b = 'c'
}

正确示例:

if (a) {
    b = 'b'
}
  • 禁止不必要的括号

'no-extra-parens': 'error'

错误示例:

const a = 10 + (5 / 10)

正确示例:

const a = 10 + 5 / 10
  • 禁止给导入的参数重新赋值

'no-import-assign': 'error'

  • 禁止丢失精度的数字文字(无精度损失)(警告)

'no-loss-of-precision': 'warn'

错误示例:

const x = 9007199254740993
const x = 5123000000000000000000000000001
const x = 1230000000000000000000000.0
const x = .1230000000000000000000000
const x = 0X20000000000001
const x = 0X2_000000000_0001
  • 不允许从 Promise 执行器函数返回值

'no-promise-executor-return': 'error'

错误示例:

new Promise(() => {
    return false
})
  • 禁止从 setter 返回值

'no-setter-return': 'error'

  • 禁止循环体只允许一次迭代

'no-unreachable-loop': 'error'

错误示例:

for (var i = 0; j < 10; i++) {
    dosomething()
    break
}

改用条件判断

  • 禁止不必要地使用计算属性键

'no-useless-computed-key': 'warn'

错误示例:

var a = { ['0']: 0 };
var a = { ['0+1,234']: 0 };
var a = { [0]: 0 };
var a = { ['x']: 0 };
var a = { ['x']() {} };

正确示例:

var c = { 'a': 0 };
var c = { 0: 0 };
var a = { x() {} };
var c = { a: 0 };
var c = { '0+1,234': 0 };
  • 使用模板文字而不是字符串连接

'prefer-template': 'warn'

  • 强制jsx中使用双引号

'jsx-quotes': ['error', 'prefer-double']

  • 强制多行注释的特定样式(不允许连续的行注释而支持块注释。此外,要求块注释*在每行之前有一个对齐的字符)

'multiline-comment-style': 'error'

错误示例:

// a
// b
// c

正确示例:

/**
* a
* b
* c
*/
  • 在三元表达式的操作数之间保持一致的换行

'multiline-ternary': ["error", "always-multiline"]

错误示例:

foo > bar ? value1 :
    value2;

正确示例:

foo > bar ? value1 : value2;

foo > bar
 ? value1
 : value2;
  • 禁止否定条件

'no-negated-condition': 'error'

错误示例:

if (!a) {
    doNotA()
} else {
    doA()
}

正确示例:

/**
if (a) {
    doA()
} else {
    doNotA()
}
*/
  • 要求使用分号

semi: ['error', 'always']

  • 句尾逗号,要求在对象、imports、exports多行时,最后一个属性后添加一个逗号

'comma-dangle': ['error', { arrays: 'never', objects: 'always-multiline', imports: 'always-multiline', exports: 'always-multiline', functions: 'never', }],

  • 强制每行的最大属性数,最大1

'vue/max-attributes-per-line': ['error', { singleline: 1, multiline: { max: 1, allowFirstLine: false, }, }]

  • 自定义组件无内容强制自关闭

'vue/html-self-closing': ['error', { html: { void: 'always', normal: 'never', component: 'always', }, svg: 'always', math: 'always', }]

  • 强制属性顺序

'vue/attributes-order': ['error', { order: [ 'GLOBAL', 'DEFINITION', 'LIST_RENDERING', 'CONDITIONALS', 'RENDER_MODIFIERS', 'UNIQUE', 'TWO_WAY_BINDING', 'OTHER_DIRECTIVES', 'OTHER_ATTR', 'EVENTS', 'CONTENT' ], }]

  • v-model允许添加参数

'vue/no-v-model-argument': 'off'

  • template标签能使用key

'vue/no-v-for-template-key': 'off'

  • 一个template-root 中允许多个组件

'vue/no-multiple-template-root': 'off'