eslint/docs/src/rules/no-space-before-semi.md

   1 ---
   2 title: no-space-before-semi
   3 layout: doc
   4
   5 related_rules:
   6 - semi
   7 - no-extra-semi
   8 ---
   9
  10 Disallows spaces before semicolons.
  11
  12 (removed) This rule was **removed** in ESLint v1.0 and **replaced** by the [semi-spacing](semi-spacing) rule.
  13
  14 JavaScript allows for placing unnecessary spaces between an expression and the closing semicolon.
  15
  16 Space issues can also cause code to look inconsistent and harder to read.
  17
  18 ```js
  19 var thing = function () {
  20   var test = 12 ;
  21 }  ;
  22 ```
  23
  24 ## Rule Details
  25
  26 This rule prevents the use of spaces before a semicolon in expressions.
  27
  28 Examples of **incorrect** code for this rule:
  29
  30 ::: incorrect
  31
  32 ```js
  33 var foo = "bar" ;
  34
  35 var foo = function() {} ;
  36
  37 var foo = function() {
  38 } ;
  39
  40 var foo = 1 + 2 ;
  41 ```
  42
  43 :::
  44
  45 Examples of **correct** code for this rule:
  46
  47 ::: correct
  48
  49 ```js
  50 ;(function(){}());
  51
  52 var foo = "bar";
  53 ```
  54
  55 :::