eslint/docs/src/rules/no-empty-label.md

   1 ---
   2 title: no-empty-label
   3 layout: doc
   4
   5 related_rules:
   6 - no-labels
   7 - no-label-var
   8 - no-unused-labels
   9 ---
  10
  11 Disallows labels for anything other than loops and switches.
  12
  13 (removed) This rule was **removed** in ESLint v2.0 and **replaced** by the [no-labels](no-labels) rule.
  14
  15 Labeled statements are only used in conjunction with labeled break and continue statements. ECMAScript has no goto statement.
  16
  17 ## Rule Details
  18
  19 This error occurs when a label is used to mark a statement that is not an iteration or switch
  20
  21 Example of **incorrect** code for this rule:
  22
  23 ::: incorrect
  24
  25 ```js
  26 /*eslint no-empty-label: "error"*/
  27
  28 labeled:
  29 var x = 10;
  30 ```
  31
  32 :::
  33
  34 Example of **correct** code for this rule:
  35
  36 ::: correct
  37
  38 ```js
  39 /*eslint no-empty-label: "error"*/
  40
  41 labeled:
  42 for (var i=10; i; i--) {
  43     // ...
  44 }
  45 ```
  46
  47 :::
  48
  49 ## When Not To Use It
  50
  51 If you don't want to be notified about usage of labels, then it's safe to disable this rule.