lodash.difference

What is lodash.difference?

The lodash.difference package is a utility library that provides a function to create an array of unique values that are present in the first array but not in the subsequent arrays. It is part of the larger Lodash library, which is known for its utility functions for common programming tasks.

What are lodash.difference's main functionalities?

Array Difference

This feature allows you to find the difference between two arrays. In this example, the value '1' is present in the first array but not in the second array, so it is included in the result.

const difference = require('lodash.difference');
const array1 = [2, 1];
const array2 = [2, 3];
const result = difference(array1, array2);
console.log(result); // Output: [1]

Other packages similar to lodash.difference

underscore

Underscore is a JavaScript library that provides utility functions for common programming tasks. It includes a function called 'difference' that works similarly to lodash.difference. However, Lodash is generally considered to be faster and more modular than Underscore.

ramda

Ramda is a functional programming library for JavaScript. It provides a 'difference' function that can be used to find the difference between two arrays. Ramda emphasizes immutability and functional programming principles, which can be a different approach compared to Lodash.

array-difference

array-difference is a smaller, more focused npm package that provides a function to find the difference between two arrays. It is less comprehensive than Lodash but can be a good choice if you only need this specific functionality without the overhead of a larger library.

README

lodash.difference v3.2.2

The modern build of lodash’s _.difference exported as a Node.js/io.js module.

Installation

Using npm:

$ {sudo -H} npm i -g npm
$ npm i --save lodash.difference

In Node.js/io.js:

var difference = require('lodash.difference');

See the documentation or package source for more details.