eslint/no-empty-character-class Correctness

✅ This rule is turned on by default.

Disallow empty character classes in regular expressions.

Because empty character classes in regular expressions do not match anything, they might be typing mistakes.

Examples of incorrect code for this rule:

javascript

var foo = /^abc[]/;

Examples of correct code for this rule:

javascript

var foo = /^abc/;
var foo2 = /^abc[123]/;

How to use

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

Config (.oxlintrc.json)Config (oxlint.config.ts)CLI

json

{
  "rules": {
    "no-empty-character-class": "error"
  }
}

import { defineConfig } from "oxlint";

export default defineConfig({
  rules: {
    "no-empty-character-class": "error",
  },
});

bash

oxlint --deny no-empty-character-class

This rule was added in v0.0.7.