The Lodash _.isInstanceOf() method checks whether the given value is the instance of a given constructor or not and returns the corresponding boolean value.
Syntax:
_.isInstanceOf(value, constructor);
Parameters: This method takes two parameter as mentioned above and described below:
- value: Given value to be checked for instance.
- constructor: Given a constructor.
Return Value: This method returns a Boolean value true if the given value is instance, else false.
Note: This will not work in normal JavaScript because it requires the lodash.js contrib library to be installed. Lodash.js contrib library can be installed using npm install lodash-contrib.
Example 1:
Javascript
// Defining lodash contrib variable var _ = require( 'lodash-contrib' ); // Checking for _.isInstanceOf() method console.log( "The Value is Instance Of constructor : " + _.isInstanceOf( new Date(),Date)); |
Output:
The Value is Instance Of constructor : true
Example 2:
Javascript
// Defining lodash contrib variable var _ = require( 'lodash-contrib' ); // Checking for _.isInstanceOf() method console.log( "The Value is Instance Of constructor : " + _.isInstanceOf( "abc" , Date)); |
Output:
The Value is Instance Of constructor : false
Whether you’re preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, neveropen Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we’ve already empowered, and we’re here to do the same for you. Don’t miss out – check it out now!