Lo-Dash v2.4.1

A utility library delivering consistency, customization, performance, & extras.


Check out our wiki for details over the differences between builds.

CDN copies are available on cdnjs & jsDelivr. For smaller file sizes, create custom builds with only the features needed.

Love modules? We’ve got you covered with lodash-amd, lodash-es6, lodash-node, & npm packages per method.

Dive in

There’s plenty of documentation, unit tests, & benchmarks.
Check out DevDocs as a fast, organized, & searchable interface for our documentation.

The full changelog for this release is available on our wiki.
A list of upcoming features is available on our roadmap.

Features not in Underscore



Tested in Chrome 5~31, Firefox 2~25, IE 6-11, Opera 9.25~17, Safari 3-7, Node.js 0.6.21~0.10.22, Narwhal 0.3.2, PhantomJS 1.9.2, RingoJS 0.9, & Rhino 1.7RC5.
Automated browser test results are available as well as Travis CI builds for lodash, lodash-cli, lodash-amd, lodash-node, & grunt-lodash.

Special thanks to Sauce Labs for providing automated browser testing.
Sauce Labs

Installation & usage

In browsers:

<script src="lodash.js"></script>

Using npm:

npm i --save lodash

{sudo} npm i -g lodash
npm ln lodash

In Node.js & Ringo:

var  = require('lodash');
// or as Underscore
var  = require('lodash/dist/lodash.underscore');


  • Don’t assign values to special variable _ when in the REPL
  • If Lo-Dash is installed globally, run npm ln lodash in your project’s root directory before requiring it

In Rhino:


In an AMD loader:

  'packages': [
    { 'name': 'lodash', 'location': 'path/to/lodash', 'main': 'lodash' }
['lodash'], function() {


John-David Dalton


twitter/blainebublitz twitter/kitcambridge twitter/mathias
Blaine Bublitz Kit Cambridge Mathias Bynens

Bitdeli Badge