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If-Else In Javascript

In this article, we will discuss the if-else in JavaScript.

Purpose

The purpose of if-else statements in JavaScript is to conditionally execute code based on whether a condition evaluates to true or false, providing alternative paths of execution.

Syntax

if (condition is true)
{
    //	Execute the code
}
else
{
    // Execute other code
}

Example

Consider the following code: -

var age = 25;
if (age < 18) {
	alert("adolescent");
} else {
	alert("Adult");
}

Try It

The code judges the person based on age whether the person is an adolescent or adult.

If-Else-If

For if-else-if, we will use the following syntax: -

if(condition is true)
{
//	Execute the code
}
else if(condition is true)
{
	// Execute this code
}
else
{
	// Execute this code
}

Posted By -	Karan Gupta

Posted On -	Monday, March 21, 2011

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