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Lodash
Lodash
A modern JavaScript utility library delivering modularity, performance & extras.
_.defaults({ 'a': 1 }, { 'a': 3, 'b': 2 });// → { 'a': 1, 'b': 2 }_.partition([1, 2, 3, 4], n => n % 2);// → [[1, 3], [2, 4]]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 lodashIn Node.js:
// Load the full build.var _ = require('lodash');// Load the core build.var _ = require('lodash/core');// Load the FP build for immutable auto-curried iteratee-first data-last methods.var fp = require('lodash/fp'); // Load method categories.var array = require('lodash/array');var object = require('lodash/fp/object'); // Cherry-pick methods for smaller browserify/rollup/webpack bundles.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+.