Lodash _.bound() Method

The Lodash _.bound() method returns function which is a property of an object by name, bound to the object made.

Syntax:

_.bound( obj, function);

Parameters: This method accepts two parameters as listed above and discussed below.

• obj: the object in which the function is defined.
• function: a function defined containing the returning logic.

Return Value: This method returns a function.

Note: To execute the below examples, you have to install the lodash-contrib library by using this command prompt and execute the following command.

npm install lodash-contrib

Below examples illustrate the Lodash _.bound() method in JavaScript:

Example 1:

Javascript

// Defining lodash contrib variable
var _ = require('lodash-contrib');

var gfgObject = {
    name: "GeeksforGeeks",
    detail: "Computer science portal for geeks",
    geekFunc: function() {
        return this.name + ": " + this.detail;
    }
};

var gfgFunction = _.bound(gfgObject, "geekFunc");
console.log(gfgFunction());

Output:

GeeksforGeeks: Computer science portal for geeks

Example 2: 

Javascript

// Defining lodash contrib variable
var _ = require('lodash-contrib');

var gfgObject = {
    one : 1,
    two : 2,
    geekFunc: function() {
        return this.one + " and " + this.two;
    }
};

var gfgFunction = _.bound(gfgObject, "geekFunc");
console.log(gfgFunction());

Output:

1 and 2