[woah]

It's supposed to be better, faster, and stronger (more functions) than underscore.

It's also under active maintenance from an enthusiastic dev. Do your own research, but I go with lodash.

[jsprogrammer]

Lazy.js claims to be even faster than both with support for lazy evaluation to boot. Not quite a drop-in replacement like lodash is, but I think it only requires a minor tweak.

[d4n3]

seems like lodash now has lazy evaluation as well when using the _(obj).method() syntax:

http://filimanjaro.com/blog/2014/introducing-lazy-evaluation...

[killercup]

A new feature in 3.0 is that lodash now supports lazy evaluation using the chaining API from 2.x.

[masklinn]

So 2.0 code which used chaining is now broken if it doesn't explicitly exhaust the chain?

[je42]

Lazy.js is however not that active. I guess the community around it still needs to develop.