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Eslint参考手册

规则 | Rules

lines-between-class-members

--fix命令行上的选项可以自动修复一些被这条规则反映的问题。

此规则通过在类成员之间强制执行来提高可读性。它不会在第一个成员之前和最后一个成员之后检查空行,因为这已经由填充块处理。

规则细节

此规则的错误代码示例:

/* eslint lines-between-class-members: ["error", "always"]*/
class MyClass {
  foo() {
    //...
  }
  bar() {
    //...
  }
}

此规则的正确代码示例:

/* eslint lines-between-class-members: ["error", "always"]*/
class MyClass {
  foo() {
    //...
  }

  bar() {
    //...
  }
}

选项

该规则具有字符串选项和对象选项。

字符串选项:

  • "always"(默认)在课堂成员之后需要一个空行
  • "never" 在班级成员之后不允许空行

对象选项:

  • "exceptAfterSingleLine": false(默认)不要在单行类成员之后跳过检查空行
  • "exceptAfterSingleLine": true 在单线类成员之后跳过检查空行

带有字符串选项的此规则的错误代码示例:

/* eslint lines-between-class-members: ["error", "always"]*/
class Foo{
  bar(){}
  baz(){}
}

/* eslint lines-between-class-members: ["error", "never"]*/
class Foo{
  bar(){}

  baz(){}
}

带有字符串选项的此规则的正确代码示例:

/* eslint lines-between-class-members: ["error", "always"]*/
class Foo{
  bar(){}

  baz(){}
}

/* eslint lines-between-class-members: ["error", "never"]*/
class Foo{
  bar(){}
  baz(){}
}

带有对象选项的此规则的正确代码示例:

/* eslint lines-between-class-members: ["error", "always", { exceptAfterSingleLine: true }]*/
class Foo{
  bar(){} // single line class member
  baz(){
    // multi line class member
  }

  qux(){}
}

何时不使用它

如果您不想强制类成员之间的空行,可以禁用此规则。

相关规则

  • padded-blocks

  • padding-line-between-statements
  • requirePaddingNewLinesAfterBlocks
  • disallowPaddingNewLinesAfterBlocks

版本

该规则在 ESLint 4.9.0 中引入。

资源

  • Rule source
  • Documentation source

规则 | Rules相关

1.accessor-pairs
2.array-bracket-newline
3.array-bracket-spacing
4.array-callback-return
5.array-element-newline
6.arrow-body-style
7.arrow-parens
8.arrow-spacing
9.block-scoped-var
10.block-spacing
11.brace-style
12.callback-return
13.camelcase
14.capitalized-comments
15.class-methods-use-this
16.comma-dangle
17.comma-spacing
18.comma-style
19.complexity
20.computed-property-spacing
21.consistent-return
22.consistent-this
23.constructor-super
24.curly
25.default-case
26.dot-location
27.dot-notation
28.eol-last
29.eqeqeq
30.for-direction
31.func-call-spacing
32.func-name-matching
33.func-names
34.func-style
35.function-paren-newline
36.generator-star
37.generator-star-spacing
38.getter-return
39.global-require
40.global-strict
41.guard-for-in
42.handle-callback-err
43.id-blacklist
44.id-length
45.id-match
46.implicit-arrow-linebreak
47.indent
48.indent-legacy
49.init-declarations
50.jsx-quotes
51.key-spacing
52.keyword-spacing
53.line-comment-position
54.linebreak-style
55.lines-around-comment
56.lines-around-directive
57.max-depth
58.max-len
59.max-lines
60.max-nested-callbacks
61.max-params
62.max-statements
63.max-statements-per-line
64.multiline-comment-style
65.multiline-ternary
66.new-cap
67.new-parens
68.newline-after-var
69.newline-before-return
70.newline-per-chained-call
71.no-alert
72.no-array-constructor
73.no-arrow-condition
74.no-await-in-loop
75.no-bitwise
76.no-buffer-constructor
77.no-caller
78.no-case-declarations
79.no-catch-shadow
80.no-class-assign
81.no-comma-dangle
82.no-compare-neg-zero
83.no-cond-assign
84.no-confusing-arrow
85.no-console
86.no-const-assign
87.no-constant-condition
88.no-continue
89.no-control-regex
90.no-debugger
91.no-delete-var
92.no-div-regex
93.no-dupe-args
94.no-dupe-class-members
95.no-dupe-keys
96.no-duplicate-case
97.no-duplicate-imports
98.no-else-return
99.no-empty
100.no-empty-character-class
Eslint

ESLint 是一个代码规范和错误检查工具,有以下几个特性。所有东西都是可以插拔的。你可以调用任意的 rule api 或者 formatter api 去打包或者定义 rule or formatter。任意的 rule 都是独立的。没有特定的 coding style,你可以自己配置。

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源码 https://github.com/eslint/eslint
发布版本 4.12.0

Eslint目录

1.指南 | Guide
2.规则 | Rules