JavaScript: Find the Remainder of Two Numbers

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1. Introduction

Finding the remainder when one number is divided by another is a basic arithmetic operation. In programming, this operation is especially useful in scenarios like determining if a number is even or odd, cycling through indices in arrays, and more. In this article, we will delve into how to determine the remainder of two numbers using JavaScript.

2. Program Overview

In this concise tutorial, we will:

1. Assign two numbers via variable declaration.

2. Calculate the remainder when the first number is divided by the second.

3. Exhibit the resultant remainder.

3. Code Program

let dividend = 29;      // The number to be divided
let divisor = 5;        // The number by which division takes place
let remainder = dividend % divisor;   // Calculating the remainder
console.log("The remainder when " + dividend + " is divided by " + divisor + " is: " + remainder);

Output:

The remainder when 29 is divided by 5 is: 4

4. Step By Step Explanation

1. Variable Declaration: We commence by declaring two variables, dividend, and divisor, initialized with values 29 and 5, respectively. These are the numbers we'll use for our division operation.

2. Calculating the Remainder: The modulus operation (%) in the line let remainder = dividend % divisor; determines the remainder when dividend is divided by divisor.

3. Outputting the Result: Using the console.log method, we exhibit the result. Through a concatenated string format, the output provides a clear insight into the operation and its result for the user.

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