lodash.assign

What is lodash.assign?

The lodash.assign npm package is a method that assigns own enumerable string keyed properties of source objects to the destination object. It is part of the Lodash library, which is a popular utility library for JavaScript. lodash.assign is used primarily for object manipulation by copying properties from one or more source objects to a target object.

What are lodash.assign's main functionalities?

Object Property Assignment

This feature allows you to copy properties from one or more source objects to a target object. It modifies the target object and is useful for extending it with new properties.

{
  const object = { 'a': 1 };
  const source = { 'b': 2 };
  _.assign(object, source);
  console.log(object); // Output: { 'a': 1, 'b': 2 }
}

Other packages similar to lodash.assign

object-assign

object-assign is a polyfill for Object.assign which is a part of the ECMAScript 2015 (ES6) standard. It offers similar functionality to lodash.assign by copying properties from source objects to a target object. However, object-assign strictly follows the ES6 specification and does not include additional Lodash-specific optimizations or capabilities.

extend

extend is another utility that can be used to merge the contents of two or more objects together into the first object. It is similar to lodash.assign but also supports deep merging, which lodash.assign does not support by default.

README

lodash.assign v4.1.0

The lodash method _.assign exported as a Node.js module.

Installation

Using npm:

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

In Node.js:

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

See the documentation or package source for more details.