eslint/docs/src/rules/space-after-keywords.md

   1 ---
   2 title: space-after-keywords
   3 layout: doc
   4
   5 ---
   6
   7 Enforces consistent spacing after keywords.
   8
   9 (removed) This rule was **removed** in ESLint v2.0 and replaced by the [keyword-spacing](keyword-spacing) rule.
  10
  11 (fixable) The `--fix` option on the [command line](../user-guide/command-line-interface#--fix) automatically fixed problems reported by this rule.
  12
  13 Some style guides will require or disallow spaces following the certain keywords.
  14
  15 ```js
  16 if (condition) {
  17     doSomething();
  18 } else {
  19     doSomethingElse();
  20 }
  21
  22 if(condition) {
  23     doSomething();
  24 }else{
  25     doSomethingElse();
  26 }
  27 ```
  28
  29 ## Rule Details
  30
  31 This rule will enforce consistency of spacing after the keywords `if`, `else`, `for`, `while`, `do`, `switch`, `try`, `catch`, `finally`, and `with`.
  32
  33 This rule takes one argument. If it is `"always"` then the keywords must be followed by at least one space. If `"never"`
  34 then there should be no spaces following. The default is `"always"`.
  35
  36 Examples of **incorrect** code for this rule:
  37
  38 ::: incorrect
  39
  40 ```js
  41 /*eslint space-after-keywords: "error"*/
  42
  43 if(a) {}
  44
  45 if (a) {} else{}
  46
  47 do{} while (a);
  48 ```
  49
  50 :::
  51
  52 ::: incorrect
  53
  54 ```js
  55 /*eslint space-after-keywords: ["error", "never"]*/
  56
  57 if (a) {}
  58 ```
  59
  60 :::
  61
  62 Examples of **correct** code for this rule:
  63
  64 ::: correct
  65
  66 ```js
  67 /*eslint space-after-keywords: "error"*/
  68
  69 if (a) {}
  70
  71 if (a) {} else {}
  72 ```
  73
  74 :::
  75
  76 ::: correct
  77
  78 ```js
  79 /*eslint space-after-keywords: ["error", "never"]*/
  80
  81 if(a) {}
  82 ```
  83
  84 :::