Lodash _.assign() Method

Lodash is a JavaScript library that works on the top of underscore.js. Lodash helps in working with arrays, strings, objects, numbers, etc.

The _.assign() method is used to assign the enumerable string keyed properties of the given source objects to the destination objects. The source objects are applied from left to right and any subsequent sources overwrite the property assignments of the previous sources.

Syntax:

_.assign( dest_object, src_obj )

Parameters: This method accepts two parameters as mentioned above and described below:

• dest_object: This is the destination object.
• src_obj: These are the source objects.

Return Value: This method returns an object.

Example 1:

Javascript

// Defining Lodash variable
const _ = require('lodash');

// Using the ._assign() method
console.log(
  _.assign({ a: 1, c: 3 }, { a: 0 })
);

Output:

{ a: 0, c: 3 }

Example 2:

Javascript

// Defining Lodash variable
const _ = require('lodash');

// Using the ._assign() method
console.log(
  _.assign({ a: 0 }, { a: 1, c: 3 }, { d: 4 })
);

Output:

{ a: 1, c: 3, d: 4 }

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