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Instanceof Operator In Javascript

This article describes the instanceof operator in JavaScript.

Instance Creation In Javascript

To begin with, create the instance in JavaScript.

var date = new Date();
var obj = new Object();

In the example above, date is an instance of Date() and obj is an instance of the Object() function.

Purpose Of Instanceof

The purpose of instanceof is to check the type of an instance.

Syntax

instanceName Instanceof ObjectType

Example

<script type="text/javascript">
        var date = new Date();
        var obj = new Object();
        alert(date instanceof Date);
        alert(obj instanceof Date);
</script>

Try It

Output

Picture showing the Instanceof Operator In Javascript

Posted By -	Karan Gupta

Posted On -	Sunday, December 25, 2016

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