Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.
Install with npm:
$ npm install --save arr-diff
Install with yarn:
$ yarn add arr-diff
Install with bower
$ bower install arr-diff --save
Returns the difference between the first array and additional arrays.
var diff = require('arr-diff'); var a = ['a', 'b', 'c', 'd']; var b = ['b', 'c']; console.log(diff(a, b)) //=> ['a', 'd']
This library versus array-differ, on April 14, 2017:
Benchmarking: (4 of 4) · long-dupes · long · med · short # benchmark/fixtures/long-dupes.js (100804 bytes) arr-diff-3.0.0 x 822 ops/sec ±0.67% (86 runs sampled) arr-diff-4.0.0 x 2,141 ops/sec ±0.42% (89 runs sampled) array-differ x 708 ops/sec ±0.70% (89 runs sampled) fastest is arr-diff-4.0.0 # benchmark/fixtures/long.js (94529 bytes) arr-diff-3.0.0 x 882 ops/sec ±0.60% (87 runs sampled) arr-diff-4.0.0 x 2,329 ops/sec ±0.97% (83 runs sampled) array-differ x 769 ops/sec ±0.61% (90 runs sampled) fastest is arr-diff-4.0.0 # benchmark/fixtures/med.js (708 bytes) arr-diff-3.0.0 x 856,150 ops/sec ±0.42% (89 runs sampled) arr-diff-4.0.0 x 4,665,249 ops/sec ±1.06% (89 runs sampled) array-differ x 653,888 ops/sec ±1.02% (86 runs sampled) fastest is arr-diff-4.0.0 # benchmark/fixtures/short.js (60 bytes) arr-diff-3.0.0 x 3,078,467 ops/sec ±0.77% (93 runs sampled) arr-diff-4.0.0 x 9,213,296 ops/sec ±0.65% (89 runs sampled) array-differ x 1,337,051 ops/sec ±0.91% (92 runs sampled) fastest is arr-diff-4.0.0
- arr-flatten: Recursively flatten an array or arrays. This is the fastest implementation of array flatten. | homepage
- array-filter: Array#filter for older browsers. | homepage
- array-intersection: Return an array with the unique values present in all given arrays using strict equality… more | homepage
Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
To generate the readme, run the following command:
$ npm install -g verbose/verb#dev verb-generate-readme && verb
Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
$ npm install && npm test
This file was generated by verb-generate-readme, v0.5.0, on April 14, 2017.