#no-dupe-keys

#Configuration

import { defineConfig, js } from '@rslint/core';

export default defineConfig([
  js.configs.recommended,
  {
    rules: {
      'no-dupe-keys': 'error',
    },
  },
]);

#Rule Details

Disallow duplicate keys in object literals. Multiple properties with the same key in object literals can cause unexpected behavior.

Examples of incorrect code for this rule:

var foo = {
  bar: 'baz',
  bar: 'qux',
};

var foo = {
  bar: 'baz',
  bar: 'qux',
};

Examples of correct code for this rule:

var foo = {
  bar: 'baz',
  qux: 'quux',
};

// getter and setter with same name is valid
var foo = {
  get bar() {},
  set bar(v) {},
};

#Original Documentation

https://eslint.org/docs/latest/rules/no-dupe-keys