arr-union

What is arr-union?

The arr-union npm package is designed to create an array of unique values, in order, from the provided arrays. It is particularly useful for combining arrays while removing duplicate entries efficiently.

What are arr-union's main functionalities?

Union of multiple arrays

This feature allows you to pass multiple arrays to the union function, which returns a new array that includes every unique element from the input arrays, preserving the order they appear in the input.

const union = require('arr-union');
let result = union([1, 2], [2, 3], [3, 4]);
console.log(result); // Output: [1, 2, 3, 4]

Other packages similar to arr-union

lodash.union

Lodash's union function offers similar functionality to arr-union. It creates an array of unique values, in order, from all given arrays using SameValueZero for equality comparisons. Compared to arr-union, lodash.union is part of a larger utility library, which might be preferable for projects that require additional utility functions beyond array union.

README

arr-union

Returns an array of unique values using strict equality for comparisons, maintaining the same order as the provided arrays .

Install with npm

npm i arr-union --save

Usage

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

union(['a'], ['b', 'c'], ['d', 'e', 'f']);
//=> ['a', 'b', 'c', 'd', 'e', 'f']

Returns only unique elements:

union(['a', 'a'], ['b', 'c']);
//=> ['a', 'b', 'c']

Author

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

License

Copyright (c) 2014 Jon Schlinkert
Released under the MIT license

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This file was generated by verb on December 12, 2014. To update, run npm i -g verb && verb.