computed-property-spacing

在计算的属性括号内强制执行一致的间距

一些该规则报告的问题可以通过 --fix 命令行选项 自动修复

虽然格式化偏好是非常个人化的，但在以下情况下，许多样式指南要求或不允许计算属性之间存在空格：

/*eslint-env es6*/

var obj = { prop: "value" };
var a = "prop";
var x = obj[a]; // computed property in object member expression

var a = "prop";
var obj = {
  [a]: "value" // computed property key in object literal (ECMAScript 6)
};

var obj = { prop: "value" };
var a = "prop";
var { [a]: x } = obj; // computed property key in object destructuring pattern (ECMAScript 6)

规则详情

此规则强制计算属性括号内的间距一致。

它要求或不允许括号和其中的值之间有空格。此规则不适用于通过换行符与相邻值分隔的括号。

选项

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KUeUdYgJ23xXvLdmzR+dd2x+6oaBmrm4b4HxP5rSCUQ=

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aun0wInWbMVczwU/w0Y7dg==

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never

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/*eslint computed-property-spacing: ["error", "never"]*/
/*eslint-env es6*/

obj[foo ]
obj[ 'foo']
var x = {[ b ]: a}
obj[foo[ bar ]]

const { [ a ]: someProp } = obj;
({ [ b ]: anotherProp } = anotherObj);

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/*eslint computed-property-spacing: ["error", "never"]*/
/*eslint-env es6*/

obj[foo]
obj['foo']
var x = {[b]: a}
obj[foo[bar]]

const { [a]: someProp } = obj;
({ [b]: anotherProp } = anotherObj);

always

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/*eslint computed-property-spacing: ["error", "always"]*/
/*eslint-env es6*/

obj[foo]
var x = {[b]: a}
obj[ foo]
obj['foo' ]
obj[foo[ bar ]]
var x = {[ b]: a}
const { [a]: someProp } = obj;
({ [b ]: anotherProp } = anotherObj);

0CQI/n5xTgnggRkjNbRwe3aJ0iPBiw+WGzycevxIrVZJsWjwAZSA2HIWm4IX+ClLqrJ+0ULZnL6Bq44SYlKQwZvHYScU22meJ53mh07Q1eE=

/*eslint computed-property-spacing: ["error", "always"]*/
/*eslint-env es6*/

obj[ foo ]
obj[ 'foo' ]
var x = {[ b ]: a}
obj[ foo[ bar ] ]
const { [ a ]: someProp } = obj;
({ [ b ]: anotherProp } = anotherObj);

enforceForClassMembers

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/*eslint computed-property-spacing: ["error", "never", { "enforceForClassMembers": true }]*/
/*eslint-env es6*/

class Foo {
  [a ]() {}
  get [b ]() {}
  set [b ](value) {}
}

const Bar = class {
  [ a](){}
  static [ b]() {}
  static get [ c ]() {}
  static set [ c ](value) {}
}

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/*eslint computed-property-spacing: ["error", "never", { "enforceForClassMembers": true }]*/
/*eslint-env es6*/

class Foo {
  [a]() {}
  get [b]() {}
  set [b](value) {}
}

const Bar = class {
  [a](){}
  static [b]() {}
  static get [c]() {}
  static set [c](value) {}
}

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/*eslint computed-property-spacing: ["error", "never", { "enforceForClassMembers": false }]*/
/*eslint-env es6*/

class Foo {
  [a ]() {}
  get [b ]() {}
  set [b ](value) {}
}

const Bar = class {
  [ a](){}
  static [ b]() {}
  static get [ c ]() {}
  static set [ c ](value) {}
}

何时不使用

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