Return an array with the unique values present in _all_ given arrays using strict equality for comparisons.

Downloads in past


0.1.29 years ago9 years agoMinified + gzip package size for array-intersection in KB


array-intersection NPM version
Return an array with the unique values present in all given arrays using strict equality for comparisons.

Based on mout's implementation of intersection.


Install with NPM
Install with npm
npm i array-intersection --save

Install with Bower
Install with bower
bower install array-intersection --save


var intersection = require('array-intersection');

intersection(['a', 'a', 'c'])
//=> ['a', 'c']

intersection(['a', 'b', 'c'], ['b', 'c', 'e'])
//=> ['b', 'c']

intersection(['a', 'b', 'c'], ['b', 'c', 'e'], ['b', 'c', 'e'])
//=> ['b', 'c']

Related projects

  • array-every: Returns true if the callback returns truthy for all elements in the given array.
  • array-slice: Array-slice method. Slices array from the start index up to, but not including, the endmore
  • array-unique: Return an array free of duplicate values. Fastest ES5 implementation.
  • arr-union: Combines a list of arrays, returning a single array with unique values, using strict equality… more
  • filter-array: Iterates over the elements in an array, returning an array with only the elements for… more
  • index-of: Get the index of the first element in an array that returns truthy for the… more

Running tests

Install dev dependencies:
npm i -d && npm test


Pull requests and stars are always welcome. For bugs and feature requests, please create an issue


Jon Schlinkert


Copyright (c) 2015 Jon Schlinkert Released under the MIT license.

This file was generated by verb-cli
on May 07, 2015.