Enforce newline before and after dot (dot-location)

强制在点号之前或之后换行 (dot-location)

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。

JavaScript allows you to place newlines before or after a dot in a member expression.

JavaScript 允许你在成员表达式中的点操作符之前或之后放置一个换行符。

Consistency in placing a newline before or after the dot can greatly increase readability.

点操作符前后一致得放置换行符,可以能大大提供代码可读性。

var a = universe.
        galaxy;

var b = universe
       .galaxy;

Rule Details

This rule aims to enforce newline consistency in member expressions. This rule prevents the use of mixed newlines around the dot in a member expression.

该规则旨在强制成员表达式中强制换行的一致性。防止既在点号操作之前也在之后使用换行符。

Options

The rule takes one option, a string:

该规则有个字符串选项:

object

The default "object" option requires the dot to be on the same line as the object.

默认选项 "object" 要求点操作符和对象部分放在同一行。

Examples of incorrect code for the default "object" option:

默认选项 "object"错误 代码示例:

/*eslint dot-location: ["error", "object"]*/

var foo = object
.property;

Examples of correct code for the default "object" option:

默认选项 "object"正确 代码示例:

/*eslint dot-location: ["error", "object"]*/

var foo = object.
property;
var bar = object.property;

property

The "property" option requires the dot to be on the same line as the property.

选项 "property" 要求点操作符和属性放在同一行。

Examples of incorrect code for the "property" option:

选项 "property"错误 代码示例:

/*eslint dot-location: ["error", "property"]*/

var foo = object.
property;

Examples of correct code for the "property" option:

选项 "property"正确 代码示例:

/*eslint dot-location: ["error", "property"]*/

var foo = object
.property;
var bar = object.property;

When Not To Use It

You can turn this rule off if you are not concerned with the consistency of newlines before or after dots in member expressions.

如果你不关心成员表达式中点操作符前后的换行符的一致性,可以关掉此规则。

Version

This rule was introduced in ESLint 0.21.0.

该规则在 ESLint 0.21.0 中被引入

Resources


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