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Type Coercion In Javascript

In this article, we will discuss type coercion in JavaScript.

Scenario

Consider a scenario where you want to compare 2 values of different data types. There could be 2 options

Use === operator.
Type coercion.

But what is type coercion?

Type Coercion

It means converting value of one data type to equivalent value of other data type.

For example, if you want to compare an integer and a Boolean value then we can convert Boolean value to the equivalent value of integer value. Like

Integer value of false is 0.
Integer value of true is 1.

Example

var boolean = true;
var integer = 1;
var booleanInt = Number(boolean); // Type Coercion

if (integer == booleanInt)
    alert("Equal");
else
    alert("Not Equal");

If you run the above code, you will ‘Equal’ in the alert.

Posted By -	Karan Gupta

Posted On -	Sunday, January 15, 2017

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