Higher order iterator library for JavaScript/TypeScript.

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

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

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

Compile object rest and spread to ES5

Compile ES2015 spread to ES5

Allow parsing of object rest/spread

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

Transform optional chaining operators to workaround https://crbug.com/v8/11558

Iterate any iterable JS value. Works robustly in all environments, all versions.

Iterator abstraction based on ES6 specification

Convert an argument into a valid iterator. Based on the `.makeIterator()` implementation in mout https://github.com/mout/mout.

Iterate over promises serially

Turn an abstract-leveldown iterator into a readable stream

[](http://www.typescriptlang.org/) [](https://www.npmjs.com/package/@n1ru4l/push-pull-async

Creates an async iterator for a variety of inputs in the browser and node. Supports fetch, node-fetch, and cross-fetch

Framework-independent loaders for 3D graphics formats

Run multiple promise-returning & async functions with limited concurrency using native ES9

micromark extension to support MDX or MDX JS expressions

Easily handle defaults for your options