Random Integer in Range

Introduction

In this lab, we will explore various JavaScript concepts through a series of programming exercises. These exercises are designed to help you develop your skills in JavaScript programming, including data types, functions, loops, and more. By the end of the lab, you will have a solid understanding of how to use JavaScript to create dynamic and interactive web pages.

Skills Graph

How to Generate a Random Integer in a Specified Range Using JavaScript

To generate a random integer in a specified range using JavaScript, follow these steps:

1. Open the Terminal/SSH and type node to start practicing coding.
2. Use the Math.random() method to generate a random number between 0 and 1.
3. Map the random number to the desired range by multiplying it by the difference between the maximum and minimum values of the range and then adding the minimum value to the result.
4. Use the Math.floor() method to round down the result to the nearest integer.

Here's an example code snippet that implements the above steps:

const randomIntegerInRange = (min, max) =>
  Math.floor(Math.random() * (max - min + 1)) + min;

You can then call the randomIntegerInRange() function with the desired minimum and maximum values to generate a random integer within that range. For example:

randomIntegerInRange(0, 5); // 2

Summary

Congratulations! You have completed the Random Integer in Range lab. You can practice more labs in LabEx to improve your skills.