regexp/no-useless-character-class

💼 This rule is enabled in the following configs: 🟢 flat/recommended, 🔵 recommended.

🔧 This rule is automatically fixable by the --fix CLI option.

disallow character class with one character

📖 Rule Details

This rule reports character classes that defines only one character.

Character classes that define only one character have the same effect even if you remove the brackets.

🔧 Options

{
  "regexp/no-useless-character-class": ["error", {
    "ignores": ["="]
  }]
}

• "ignores" ... An array of characters and character classes to ignores. Default ["="].

The default value is "=" to prevent conflicts with the no-div-regex rule. Note that if you do not specify "=", there may be conflicts with the no-div-regex rule.

"ignores": ["a"]

👫 Related rules

• no-empty-character-class
• no-div-regex

🚀 Version

This rule was introduced in eslint-plugin-regexp v0.3.0

🔍 Implementation

• Rule source
• Test source