regexMatchNotation

Reports inconsistent notations for matching any character in regular expressions.

✅ This rule is included in the ts stylisticStrict presets.

Reports inconsistent notations for matching any character in regular expressions. There are multiple ways to match any character: [\s\S], [\S\s], [\d\D], [\w\W], [^], and . with the s (dotAll) flag. This rule enforces using [\s\S] as the standard notation.

Examples

Non-Standard Character Class Order

❌ Incorrect

const pattern = /[\S\s]/;

✅ Correct

const pattern = /[\s\S]/;

Empty Negated Character Class

❌ Incorrect

const pattern = /[^]/;

✅ Correct

const pattern = /[\s\S]/;

Digit and Non-Digit

❌ Incorrect

const pattern = /[\d\D]/;

✅ Correct

const pattern = /[\s\S]/;

Word and Non-Word

❌ Incorrect

const pattern = /[\w\W]/;

✅ Correct

const pattern = /[\s\S]/;

Options

This rule is not configurable.

When Not To Use It

If your team has established a different convention for matching any character, or if you prefer the flexibility of using different notations in different contexts, you might want to disable this rule.

Further Reading

• MDN: Character classes
• MDN: Regular expressions

Equivalents in Other Linters

• ESLint: regexp/match-any