require spacing around infix operators (space-infix-ops)

要求中缀操作符周围有空格 (space-infix-ops)

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。

While formatting preferences are very personal, a number of style guides require spaces around operators, such as:

虽然格式化首选项都非常个人化,但大量的风格指南要求运算符周围有空格,例如:

var sum = 1 + 2;

The proponents of these extra spaces believe it make the code easier to read and can more easily highlight potential errors, such as:

这些额外空格的支持者认为它将使代码易于阅读,可以更轻易地突出潜在的错误,例如:

var sum = i+++2;

While this is valid JavaScript syntax, it is hard to determine what the author intended.

虽然这是有效的 JavaScript 语法,但很难确定作者的意图。

Rule Details

This rule is aimed at ensuring there are spaces around infix operators.

此规则旨在确保中缀运算符周围有空格。

Options

This rule accepts a single options argument with the following defaults:

该规则接收唯一一个可选项参数,具有以下默认值:

"space-infix-ops": ["error", {"int32Hint": false}]

int32Hint

Set the int32Hint option to true (default is false) to allow write a|0 without space.

设置 int32Hint 选项为 true (默认 false) 允许 a|0 不带空格.

var foo = bar|0; // `foo` is forced to be signed 32 bit integer

Examples of incorrect code for this rule:

错误 代码示例:

/*eslint space-infix-ops: "error"*/
/*eslint-env es6*/

a+b

a+ b

a +b

a?b:c

const a={b:1};

var {a=0}=bar;

function foo(a=0) { }

Examples of correct code for this rule:

正确 代码示例:

/*eslint space-infix-ops: "error"*/
/*eslint-env es6*/

a + b

a       + b

a ? b : c

const a = {b:1};

var {a = 0} = bar;

function foo(a = 0) { }

Version

This rule was introduced in ESLint 0.2.0.

该规则在 ESLint 0.2.0 中被引入。

Resources


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