Array manipulation, ordering, searching, summarizing, etc.

Curated collection of data structures for the JavaScript/TypeScript.

`[].map(f)` for older browsers

Source code handling classes for webpack

Map over promises concurrently

Stringify any JavaScript value.

Map `visit` over an array of objects.

async.mapLimit's functionality available as a standalone npm module

Rope-based persistent sequence type

concatenative mapdashery

Faster, node.js focused alternative to JavaScript's native array map.

Is this value a JS Map? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Returns an array of mapped values from an array or object.

Parses set-cookie headers into objects

Runtime to be use with the Flow Enums transform.

a map from arrays of values to values

A thing that is a lot like ES6 `Map`, but without iterators, for use in environments where `for..of` syntax and `Map` are not available.

Converts a source-map from/to different formats and allows adding/changing properties.

Persistent ordered mapping from strings

An RxJS map operator that takes an observable of arrays as input and emits arrays where each element represents emissions from the projected observable.