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

a deep regex match component for react

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.

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

Regular expression for matching astral symbols

detect possibly catastrophic, exponential-time regular expressions

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

Generate a regex from a string or array of strings.

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

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.

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

Regular expression for matching file names, with or without extension.

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

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

Compile ES2015 Unicode regex to ES5

Regular expression for matching a shebang line

Regular expression for parsing an `author` string into an object following npm conventions.

Compile ES2015 sticky regex to an ES5 RegExp constructor

Compile regular expressions using named groups to ES5.

Regular expression for matching ANSI escape codes