JavaScript Program to Check Even Number

February 8, 2021 10:45 am IST

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What are Even Numbers?

An integer (never a fraction) that can be divided exactly by 2. For example, 10 is an even number, i.e., 10 % 2 = 0.

Note: % is a Modulus (Division Remainder) operator, it finds the remainder after division of one number by another. Please check our Arithmetic Operators for more details.

Tips: It is recommended to use our online Even Numbers calculator for better understanding.

Using For Loop

In the following example, we will find all the Even Numbers between 10 and 25 using for loop.

Example

HTML Online Editor

<!DOCTYPE html> <html> <body> <h1>JS Find All Even Numbers</h1> <script> var start = 10; var end = 25; document.write("Even numbers between "+start+" to "+end+":<br>"); for(start = start; start <= end; start++) { if(start % 2 == 0) document.write(start +", "); } </script> </body> </html>

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Using While Loop

In the following example, we will find all the Even Numbers between 10 and 25 using while loop.

Example

HTML Online Editor

<!DOCTYPE html> <html> <body> <h1>JS Find All Even Numbers</h1> <script> var start = 10; var end = 25; document.write("Even numbers between "+start+" to "+end+":<br>"); while(start <= end) { if(start % 2 == 0) document.write(start+", "); start++; } </script> </body> </html>

Run

Using do while Loop

In the following example, we will find all the Even Numbers between 10 and 25 using do while loop.

Example

HTML Online Editor

<!DOCTYPE html> <html> <body> <h1>JS Find All Even Numbers</h1> <script> var start = 10; var end = 25; document.write("Even numbers between "+start+" to "+end+":<br>"); do { if(start % 2 == 0) document.write(start+", "); start++; }while(start <= end); </script> </body> </html>

Run