unicorn/no-useless-undefined Pedantic

🛠️ An auto-fix is available for this rule.

Do not use useless undefined.

undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.

Examples of incorrect code for this rule:

javascript

let foo = undefined;

Examples of correct code for this rule:

javascript

let foo;

How to use

To enable this rule in the CLI or using the config file, you can use:

CLIConfig (.oxlintrc.json)

bash

oxlint --deny unicorn/no-useless-undefined

json

{
  "rules": {
    "unicorn/no-useless-undefined": "error"
  }
}