Matches strings against configurable strings, globs, regular expressions, and/or functions

Create an array of unique values, in order, from the input arrays

Lazy-evaluating list of files, based on globs or regex patterns

Minimal async jobs utility library, with streams support

Create an array with values that are present in the first input array but not additional ones

Create an array without duplicates

Like a Set, but provides the index of the `key` in the backing array

Fast JavaScript array sorting by implementing Python's Timsort algorithm

A module used internally by Jest to check which files have changed since you last committed in git or hg.

Stringify your JSON at max speed

Remove duplicate values from an array. Fastest ES5 implementation.

`Array#forEach()` but it’s possible to define where to move to next

Array-slice method. Slices `array` from the `start` index up to, but not including, the `end` index.

Efficient Binary heap (priority queue, binary tree) data structure for JavaScript / TypeScript. Includes JavaScript methods, Python's heapq module methods, and Java's PriorityQueue methods.

Turn anything into an array

Loop over each item in an array and call the given function on every element.

Array utils

Rope-based persistent sequence type

utilities for primitive JavaScript types

Parses set-cookie headers into objects