Last Updated : 30 Oct, 2023
Lodash _.defaults() method assigns properties of source objects to the destination object for all destination properties that resolve to undefined. Source objects are applied from left to right. Once a property is set, additional values of the same property are ignored. This method mutates the object.
Syntax:_.defaults( dest_object, [src_obj]);Parameters:
This method returns an object.
Example 1: In this example, we are using the lodash _.defaults() method in which we are passing the source and destination object and we are getting the result.
javascript
// Defining Lodash variable
const _ = require('lodash');
let a = _.defaults({ 'gfg': 3 },
{ 'geek': 1 }, { 'gfg': 6 });
console.log(a);
Output:
{ gfg: 3, geek: 1 }
Example 2: In this example, we are using the lodash _.defaults() method in which we are passing the source and destination object and we are getting the result.
javascript
// Defining Lodash variable
const _ = require('lodash');
let a = _.defaults({ 'a': 3 }, { 'b': 1 },
{ 'c': 5 }, { 'd': 5 }, { 'e': 5 });
console.log(a);
Output:
{ a: 3, b: 1, c: 5, d: 5, e: 5 }
Example 3: In this example, we are using the lodash _.defaults() method in which we are passing the source and destination object and we are getting the result.
javascript
// Defining Lodash variable
const _ = require('lodash');
let a = _.defaults({ 'a': 'first setting' },
{ 'a': 'second setting but doesnt changes' });
console.log(a);
Output:
{ a: 'first setting' }
Note: This will not work in normal JavaScript because it requires the lodash library to be installed and can be installed using the following command:
npm install lodash
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