> The ultimate JavaScript/TypeScript toolkit for object iteration, traversal, and manipulation.

forOf object iteration — A 'for in'/'Object.keys forEach' alternative

Firefox 17-26 iterators throw a StopIteration object to indicate "done". This normalizes it.

Reuse objects and functions with style

Make array iteration easy when using async/await and Promises

Type-safe, performant & immutable object iteration utilities

Lowercase the keys of an object

Get an iterator for any JS language value. Works robustly across all environments, all versions.

Minimal zero-dependency utilities for using JavaScript Iterables in all environments.

Map over an array or object of values in parallel or series, passing each through the async iterator, with optional lifecycle hooks.

Rope-based persistent sequence type

Reduces an object to a value that is the accumulated result of running each property in the object through a callback.

Object Iteration tool

Underlying library of executing Postman Collections

An ESnext spec-compliant iterator helpers shim/polyfill/replacement that works as far down as ES3.

An iteration of the Node.js core streams with a series of improvements

Notifier allows services to update clients about state changes using a stream of promises

Iterate any JS iterator. Works robustly in all environments, all versions.

Array methods for ES6 Iterators

Given a stride array, determine array iteration order.