# JavaScript Program to Check Odd Number

You are Here:

## What are Odd Numbers?

An integer (never a fraction) that cannot be divided exactly by 2. For example, 3 is an odd number, i.e., 3 % 2 = 1 (not zero).

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 Odd Numbers calculator for better understanding.

## Using For Loop

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

### Example

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

## Using While Loop

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

### Example

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

## Using do while Loop

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

### Example

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

## Reminder

Hi Developers, we almost covered 97% of JavaScript Tutorials with examples for quick and easy learning.

We are working to cover every Single Concept in JavaScript.