#no-label-var

#Configuration

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

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

#Rule Details

This rule aims to create clearer code by disallowing the bad practice of creating a label that shares a name with a variable that is in scope.

Examples of incorrect code for this rule:

var x = foo;
function bar() {
x:
  for (;;) {
    break x;
  }
}

Examples of correct code for this rule:

// The variable that has the same name as the label is not in scope.

function foo() {
  var q = t;
}

function bar() {
q:
  for (;;) {
    break q;
  }
}

#Options

This rule has no options.

#Differences from ESLint

• On files without type information, only declarations written in the file plus configured globals (languageOptions.globals / /* global foo */) are checked; clashes with built-in globals (Promise, Array, …) are not reported in that case. The globals catalog exported by @rslint/core can supply runtime-specific declarations.

#Original Documentation

• ESLint: no-label-var
• Source code