eslint/rules/regular-expressions

Regular expressions (core rules): The regular expression rules of ESLint, SonarJS and Unicorn; the regexp plugin has its own block. Rules of ESLint, typescript-eslint and SonarJS (the Sonar way profile of SonarQube) on this subject, every rule listed; the TypeScript rules apply to TypeScript files only.

32 rules, 23 on. Source: lint/eslint/rules/regular-expressions.mjs.

Rule	Setting	Files	What it checks	Why
no-control-regex	error	JS + TS	Disallow control characters in regular expressions	—
no-empty-character-class	error	JS + TS	Disallow empty character classes in regular expressions	—
no-invalid-regexp	error	JS + TS	Disallow invalid regular expression strings in RegExp constructors	—
no-misleading-character-class	error	JS + TS	Disallow characters which are made with multiple code points in character class syntax	—
no-useless-backreference	error	JS + TS	Disallow useless backreferences in regular expressions	—
no-div-regex	error	JS + TS	Disallow equal signs explicitly at the beginning of regular expressions	—
no-regex-spaces	error	JS + TS	Disallow multiple spaces in regular expressions	—
prefer-named-capture-group	info	JS + TS	Enforce using named capture group in regular expression	—
prefer-regex-literals	info, {"disallowRedundantWrapping":true}	JS + TS	Disallow use of the RegExp constructor in favor of regular expression literals	—
require-unicode-regexp	info, {"requireFlag":"v"}	JS + TS	Enforce the use of u or v flag on regular expressions	—
sonarjs/no-control-regex	off	JS + TS	Regular expressions should not contain control characters	Off: duplicate of no-control-regex.
sonarjs/no-empty-character-class	off	JS + TS	Empty character classes should not be used	Off: duplicate of no-empty-character-class.
sonarjs/no-invalid-regexp	off	JS + TS	Regular expressions should be syntactically valid	Off: duplicate of no-invalid-regexp.
sonarjs/no-misleading-character-class	off	JS + TS	Unicode Grapheme Clusters should be avoided inside regex character classes	Off: duplicate of no-misleading-character-class.
sonarjs/no-regex-spaces	off	JS + TS	Regular expressions should not contain multiple spaces	Off: duplicate of no-regex-spaces.
sonarjs/prefer-regexp-exec	off	JS + TS	"RegExp.exec()" should be preferred over "String.match()"	Off: duplicate of @typescript-eslint/prefer-regexp-exec.
sonarjs/anchor-precedence	error	JS + TS	Alternatives in regular expressions should be grouped when used with anchors	—
sonarjs/comment-regex	off	JS + TS	Track comments matching a regular expression	Off: not in the Sonar way profile of SonarQube.
sonarjs/concise-regex	warn	JS + TS	Regular expression quantifiers and character classes should be used concisely	—
sonarjs/duplicates-in-character-class	warn	JS + TS	Character classes in regular expressions should not contain the same character twice	—
sonarjs/existing-groups	error	JS + TS	Replacement strings should reference existing regular expression groups	—
sonarjs/no-empty-after-reluctant	warn	JS + TS	Reluctant quantifiers in regular expressions should be followed by an expression that can't match the empty string	—
sonarjs/no-empty-alternatives	error	JS + TS	Alternation in regular expressions should not contain empty alternatives	—
sonarjs/no-empty-group	warn	JS + TS	Regular expressions should not contain empty groups	—
sonarjs/regex-complexity	warn	JS + TS	Regular expressions should not be too complicated	—
sonarjs/shorthand-property-grouping	off	JS + TS	Shorthand object properties should be grouped at the beginning or end of an object declaration	Off: not in the Sonar way profile of SonarQube.
sonarjs/single-char-in-character-classes	warn	JS + TS	Character classes in regular expressions should not contain only one character	—
sonarjs/stateful-regex	error	JS + TS	Regular expressions with the global flag should be used with caution	—
sonarjs/super-linear-regex	warn	JS + TS	Regular expressions should not cause non-linear backtracking	—
sonarjs/unicode-aware-regex	off	JS + TS	Regular expressions using Unicode character classes or property escapes should enable the unicode flag	Off: not in the Sonar way profile of SonarQube.
sonarjs/unused-named-groups	warn	JS + TS	Names of regular expressions named groups should be used	—
@typescript-eslint/prefer-regexp-exec	error	TS	Enforce RegExp#exec over String#match if no global flag is provided	—