The modulus operator, represented by the `%` symbol, returns the remainder of a division operation between two numbers.

For example, if you divide 10 by 3, the result is 3 with a remainder of 1. The modulus operator would return the remainder, which in this case is 1.

Here's an example:

```javascript
const remainder = 10 % 3; // assigns 1 to remainder variable
console.log(remainder); // prints 1
```

So, the modulus operator can be useful in various scenarios, such as checking if a number is even or odd, or if it is divisible by another number.

```javascript
const isDivisibleByThree = 15 % 3 === 0; // true
const isOdd = 11 % 2 === 1; // true
```

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In the next challenge you'll receive a variable called `num` that will be assigned a random number. Your job is to assign to the `isEven` variable a boolean value that indicates whether the number is even or not using the modulus operator.

> Tip: Even numbers are divisible by 2, so if the remainder of the division of a number by 2 is 0, then the number is even.











Arithmetic Operators - Modulus