Lodash _.assignIn() Method
Lodash _.assignIn() method is like the _.assign() method except that it iterates over its own and inherited source properties. Subsequent source objects overwrite property assignments of previous sources. This method mutates the object.
Syntax:
_.assignIn( dest_object, [src_obj]);
Parameters:
- dest_object: This is the destination object.
- src_obj: These are the source objects.
Return Value:
This method returns an object.
Example 1: In this example, we are getting an object which has all of it’s previous inherited object properties because of the lodash _assignIn() method.
Javascript
// Defining Lodash variable const _ = require( 'lodash' ); function Gfg1() { this .a = 1; } function Gfg2() { this .c = 3; } Gfg1.prototype.b = 10; Gfg2.prototype.d = 40; console.log(_.assignIn({ a: 4 }, new Gfg1, new Gfg2)); |
Output:
{ a: 1, b: 10, c: 3, d: 40 }
Example 2: In this example, we are getting an object which has all of it’s previous inherited object properties because of the lodash _assignIn() method.
Javascript
// Defining Lodash variable const _ = require( 'lodash' ); function Gfg1() { this .a = 1; } function Gfg2() { this .c = 3; } console.log(_.assignIn({ a: 4 }, new Gfg1, new Gfg2)); |
Output:
{ a: 1, c: 3 }
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