规则名	规则类型
space-infix-ops	layout

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

var sum = 1 + 2;

Proponents of this rule believe that it makes code easier to read and can more easily highlight potential errors, such as:

var sum = i+++2;

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

规则详解

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

配置项

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

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

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

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

此规则的错误代码实例：

/*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) { }

此规则的正确代码实例：

::: correct

/*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) { }

You can turn this rule off if you are not concerned with the consistency of spacing around infix operators.