Returns true if a filepath exists on the file system and it's directory.

Easy way to split a string on a given character unless it's quoted or escaped.

Fast deep equal

This is a sequel to [stream-combiner](https://npmjs.org/package/stream-combiner) for streams3.

invariant

The option type, also known as the maybe type, for JavaScript

Simple full-text search in your browser.

Securely compare two strings, copied from cryptiles

Prefix globs with a slash and normalize. Supports negated globs too

process.hrtime() to words

Parse a PNG

Transform stream that lets you peek the first line before deciding how to parse it

copy an object's properties to another object

Easy way to make a Readable Stream

(Meta)observability for EventEmitters.

reads a BMFont binary in a Buffer into a JSON object

Check if a stream has ended

Run the supplied function exactly one time (once)

Normalize slashes in a file path to be posix/unix-like forward slashes. Also condenses repeat slashes to a single slash and removes and trailing slashes, unless disabled.

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