_.defaults({ 'a': 1 }, { 'a': 3, 'b': 2 });
_.partition([1, 2, 3, 4], n => n % 2);
Download
Lodash is released under the MIT license & supports modern environments. Review the build differences & pick one that’s right for you.
Installation
In a browser:
<script src="lodash.js"></script>Using npm:
$ npm i -g npm
$ npm i --save lodash
In Node.js:
var _ = require('lodash');
var _ = require('lodash/core');
var fp = require('lodash/fp');
var array = require('lodash/array');
var object = require('lodash/fp/object');
var at = require('lodash/at');
var curryN = require('lodash/fp/curryN');
Note:
Install n_ for Lodash use in the Node.js < 6 REPL.
Why Lodash?
Lodash makes JavaScript easier by taking the hassle out of working with arrays, numbers, objects, strings, etc. Lodash’s modular methods are great for:
- Iterating arrays, objects, & strings
- Manipulating & testing values
- Creating composite functions
Module Formats
Lodash is available in a variety of builds & module formats.
Complementary Tools
- futil-js is a set of functional utilities designed to complement lodash
Further Reading
Support
Tested in Node.js 4+, Bun 1.0+, and the latest Chromium, Firefox, WebKit, and Edge via Playwright, with a best-effort commitment to support Chrome 74+, Firefox 66+, IE 11, Edge 18, and Safari 11+.