commit 9d3c5b19a088f6e33888c215f44ab59da4ece302 Author: Nick Fitzgerald <firstname.lastname@example.org> Date: Fri May 21 22:56:49 2010 -0700 First commit
Four years later, the feature-complete, partially-implemented, and soon-to-be-finalized ECMAScript 6 supports lazy streams in the form of generators and its iterator protocol. Unfortunately, ES6 iterators are missing the higher order functions you expect: map, filter, reduce, etc.
Today, I'm happy to announce the release of
wu.js version 2.0, which has been
completely rewritten for ES6.
wu.js aims to provide higher order functions for ES6 iterables. Some of them
you already know (
reduce) and some of them might be new to
wu.js works with all ES6 iterables,
Sets, and generators you write yourself. You don't
have to wait for ES6 to be fully implemented by every JS engine,
wu.js can be
compiled to ES5 with the Tracuer compiler.
Here's a couple small examples:
const factorials = wu.count(1).reductions((last, n) => last * n); // (1, 2, 6, 24, ...) const isEven = x => x % 2 === 0; const evens = wu.filter(isEven); evens(wu.count()); // (0, 2, 4, 6, ...)