eslint/docs/rules/no-dupe-keys.md

   1 # disallow duplicate keys in object literals (no-dupe-keys)
   2
   3 Multiple properties with the same key in object literals can cause unexpected behavior in your application.
   4
   5 ```js
   6 var foo = {
   7     bar: "baz",
   8     bar: "qux"
   9 };
  10 ```
  11
  12 ## Rule Details
  13
  14 This rule disallows duplicate keys in object literals.
  15
  16 Examples of **incorrect** code for this rule:
  17
  18 ```js
  19 /*eslint no-dupe-keys: "error"*/
  20
  21 var foo = {
  22     bar: "baz",
  23     bar: "qux"
  24 };
  25
  26 var foo = {
  27     "bar": "baz",
  28     bar: "qux"
  29 };
  30
  31 var foo = {
  32     0x1: "baz",
  33     1: "qux"
  34 };
  35 ```
  36
  37 Examples of **correct** code for this rule:
  38
  39 ```js
  40 /*eslint no-dupe-keys: "error"*/
  41
  42 var foo = {
  43     bar: "baz",
  44     quxx: "qux"
  45 };
  46 ```