Updated April 10, 2023

## Introduction of JavaScript Modulo

In javascript modulo(%) is one of the operator which helps to gives the remainder is obtained by when dividing the two numbers after dividing the numbers the remainder should be anything it will be the both positive and negative numbers most probably the number is in negative one the remainder modules that is an operator which gives the remainder and it behaves like the remainder operation and the result shows it’s negative then it returns the remainder left over which one operand is divided by the second operands if suppose the first operand is negative value the return value also negative and its vice versa.

### Syntax and Parameters

In javascript each attributes and elements have their own syntax and rules to use it on the application.

```
<html>
<body>
<script>
var v1=10; //any value will be given above value is example
var v2=4 // any value will be given above value is example
var result=v1 % v2;
print the result using dom object;
---other script logics---
</script>
</body></html>
```

Above example we have used module(%) operator in the two variables when we divide the two operands it has the remainder has 2 that value is positive so it returns the positive value as the result.

### How does Modulo Done in JavaScript?

Whenever we used operators in the script it will perform their own expressions and functions used in the application. We can start the operations while choosing the initial number that is before we can perform the modulo operations in the scriptlet we choose the divisor it can be either positive or negative values to divide it one by one number by other numbers it can be calculated the rounding down values which has already resulted in the variable values. Then we have to calculate the divisor value by using the quotients also subtract the numbers from the initial numbers that can be a dividend. The Modulo operations are the case like clocks it can be so intuitive so that we can’t even notice them in the application. When we use mathematical operations it can be many types of more elaborative modules operations that can be required for more thoughts. The modulus(%) operator returns only the remainders so if either types of values like both positive and negative integers as well as the values like string types the attempt is made for to convert the string to the number formats.

Therefore, the operands are nothing but the numbers it can perform the regular arithmetic division operations are performed and the remainder of that division are returned. If suppose the dividend is infinity or the divisor type value is 0 so the result is always as NaN operands. If the infinity type is divisor then the infinite number along with the result is the dividend measurement so the dividend is 0 then the result is also 0. If the % operator used and performed the operations in the JavaScript web applications first it divides the left side value of the operands and then calculates the right side of the operands and finally it returns the result. The result is not the quotient type of the divisions then it’s the value of the remainder and its modules are the same in the code. Generally the modulus operator are more precisely whenever the modulo operations are the way to determine the remainder values using the division operation. Instead of returning the output as the division method the modulo operation which has returned the whole number as the remainders. In javascript we get the whole numbers as the numb er of times as the given integers it goes to the another operands. The basic use cases for the modulus operator is to determined the if number is to be even or odd because it is possible for the operand % value.

### Examples of JavaScript Modulo

Following are the examples are given below:

#### Example #1

**Code:**

```
<!DOCTYPE html>
<html>
<body>
<h1 style="color: green">
Welcome To My Domains
</h1>
<b>
Have a Nice Day
</b>
<p>
We have calculate the UNIX Timestamp is: 10636284
</p>
<p>The TimeStamp is: <span class="first">
</span>
</p>
<button onclick="demo()">
Get the time from above timestamp
</button>
<script type="text/javascript">
function demo() {
unix = 10636284;
d = new Date(unix * 1000);
u = d.toUTCString();
t = u.slice(-11, -4);
document.querySelector(
'.first').textContent = t;
}
</script><br/><br/>
<script>
for(var i=0; i<10; i+=1)
{
document.write( i % 4 );
}
</script>
</body>
</html>
```

**Output:**

#### Example #2

**Code:**

```
<!DOCTYPE html>
<html>
<body>
<p>Welcome To My Domain</p>
<p>Have a Nice Day</p>
<button onclick="demo()">Try it</button>
<p id="first"></p>
<script>
function demo()
{
Number.prototype.mod = function(b) {
return ((this % b) + b) % b;
}
var a = -23;
var b = 3;
var output = a.mod(b);
document.write("The result is: " + output + "</br>");
a = -34;
b = 6;
output = a.mod(b);
document.write("The output is: " + output);
}
</script>
</body>
</html>
```

**Output:**

After click on Try it button the output will be:

#### Example #3

**Code:**

```
<!DOCTYPE html>
<html>
<head>
<style>
.first>div {
display: inline-block;
height: 103px;
width: 102px;
background: red;
}
div.second {
opacity: 0;
}
div.third {
opacity: 0.1;
}
div.four {
opacity: 0.2;
}
</style>
</head>
<body bgcolor="blue">
<div class="second"><marquee>Welcome</marquee></div>
<div class="third">To</div>
<div class="four">My</div>
<div class="five">Domain</div>
<p>Have a Nice Day</p>
<button onclick="demo()">Try it</button>
<p id="first"></p>
<script>
function demo()
{
Number.prototype.mod = function(b) {
return ((this % b) + b) % b;
}
var a = -23;
var b = 3;
var output = a.mod(b);
document.write("The result is: " + output + "</br>");
a = -34;
b = 6;
output = a.mod(b);
document.write("The output is: " + output);
const even = x => {
if (x % 2 === 0) {
returntrue;
}
returnfalse;
}
even(12);
}
</script>
</body>
</html>
```

**Output:**

After click on Try it button the output will be:

The above three examples we used modulo operator in the different segments when we used both (%) as well as mod keyword both return same results.

### Conclusion

In javascript modulo operator like % as well as mod keyword both return the same results it includes many familiar mathematical operations and some of the few things that can be specified in to the programming languages. We can combine all the other operators and operations in JavaScript.

### Recommend ed Articles

This is a guide to JavaScript Modulo. Here we also discuss the introduction and how does modulo done in javascript? along with different examples and its code implementation. You may also have a look at the following articles to learn more –