Underscore.JS - identity method

Syntax

_.identity()

identity method is a default iteratee. It returns the same value which is passed as argument. See the below example −

Example

var _ = require('underscore');

var value = {name: 'Sam'};
//Example 1: Check if identity returns same object
console.log(value === _.identity(value));

value = 1;
//Example 2: Check if identity returns same object
console.log(value === _.identity(value));

Save the above program in tester.js. Run the following command to execute this program.

Command

\>node tester.js

Output

true
true