In JavaScript, the **remainder operator (%)** returns the remainder of a division operation between two numbers. It can be used to determine if a number is even or odd, among other practical applications.

`dividend % divisor`

Where `dividend`

is the number being divided and `divisor`

is the number being divided by. The `%`

symbol is the remainder operator.

Here’s an example:

```
let a = 7;
let b = 3;
let remainder = a % b;
console.log(remainder); // Output: 1
```

Since 7 divided by 3 is 2 with a remainder of 1, the value of `remainder`

will be 1.

**JavaScript Remainder (%) Example**

A simple example code uses the remainder operator (%) in JavaScript to determine whether a number is even or odd:

```
function isEven(number) {
return number % 2 === 0;
}
console.log(isEven(4)); // Output: true
console.log(isEven(7)); // Output: false
```

You can also use the remainder operator in other expressions, such as in conditional statements or loops:

```
number = 10
if (number % 2 === 0) {
console.log('The number is even.');
} else {
console.log('The number is odd.');
}
```

**Output:**

- The
`if`

statement tests whether the remainder of dividing`number`

by 2 is equal to 0. - If the remainder is 0 (i.e.,
`number`

is an even number), the code inside the first block of the`if`

statement will be executed, which in this case is to log the message “The number is even.” to the console. - If the remainder is not 0 (i.e.,
`number`

is an odd number), the code inside the`else`

block will be executed instead, which logs the message “The number is odd.” to the console.

Comment if you have any doubts or suggestions on this JS Operator topic.

Note:TheAll JS Examples codesare tested on the Firefox browser and the Chrome browser.OS:

Windows 10Code: HTML 5 Version