Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.

A regular expression to match all Emoji-only symbols as per the Unicode Standard.

A term-regex function-factory actor

A term-replace function-factory actor

Give a regex, get a robust predicate function that tests it against a string.

detect possibly catastrophic, exponential-time regular expressions

Create a javascript regular expression for matching everything except for the given string.

Regular expression for testing if a file path is a windows UNC file path. Can also be used as a component of another regexp via the `.source` property.

Regular expression for matching astral symbols

Regular expression for getting the root of a posix or windows filepath.

Tiny helpers for processing regex syntax

Memoize the results of a call to the RegExp constructor, avoiding repetitious runtime compilation of the same string and options, resulting in surprising performance improvements.

Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag

Compile ES2015 Unicode regex to ES5

A regular expression to match all emoji-only symbols

The best regular expression (regex) for matching hex color values from string.

Compile ES2015 sticky regex to an ES5 RegExp constructor

Regular expression for matching ANSI escape codes

Regular expression for matching a shebang line

Compile regular expressions using the `s` (`dotAll`) flag to ES5.