Disallow unnecessary computed property keys on objects (no-useless-computed-key)

禁止在对象中使用不必要的计算属性 (no-useless-computed-key)

The --fix option on the command line can automatically fix some of the problems reported by this rule.

命令行中的 --fix 选项可以自动修复一些该规则报告的问题。

It’s unnecessary to use computed properties with literals such as:

使用不必要的计算属性是不必要的，例如：

var foo = {["a"]: "b"};

The code can be rewritten as:

应被重写为：

var foo = {"a": "b"};

Rule Details

This rule disallows unnecessary usage of computed property keys.

这条规则禁止使用不必要的计算属性。

Examples

Examples of incorrect code for this rule:

错误代码示例：

/*eslint no-useless-computed-key: "error"*/
/*eslint-env es6*/

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

Examples of correct code for this rule:

正确代码示例：

/*eslint no-useless-computed-key: "error"*/

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

When Not To Use It

If you don’t want to be notified about unnecessary computed property keys, you can safely disable this rule.

如果你不想被提示使用了不必要的计算属性，你可以禁用此规则。

Version

This rule was introduced in ESLint 2.9.0.