JavaScript is an advanced programming language with a wide range of possible expressions. It’s often used to provide interactivity and dynamic content to websites. As a matter of fact, this article will demonstrate the JavaScript challenges for beginners through coding exercises since they are a great way to improve your JavaScript skills.

But what exactly are these coding challenges?

A coding challenge is a problem-solving test in which you must use code to achieve a desired result. Hence, the objective of this exercise is to put your creative skills to work while using your understanding of JavaScript syntax and structures.

If you’re going in for a job interview or just want to brush up on your JavaScript skills, this is a terrific method to simulate some of the challenges you’ll face in the workplace.

Coding Exercises

It will be expected of you to produce code that strictly adheres to the guidelines provided. If you have any questions or concerns, please leave a comment below or reach out to us on Instagram at @coding.cats—we’ll get back to you momentarily.

JavaScript Challenges for Beginners

These five challenges should not take longer than 20 minutes if you have basic knowledge of the language. We will be posting more challenges soon, but for now, these should be good enough to get your feet wet or refresh your memory. 

3…2…1…GO!

1. Calculate Age in Days

Write a method that takes a number (age) in years and returns a number in days. This challenge doesn’t take into account leap years.

Acceptance Criteria

• For this challenge, consider a year to be 365 days long.
• Ignore the leap years and days since your last birthday.
• Only positive integer inputs are expected.

Solution

//Arrowfunctwn:
const calcAge = age => age >= 0 ? age * 365 : undefined

// Regular function :
function calcAge(age) {
        return age >= 0 ? age * 365 : undefined :
}

2. Hours to Seconds Conversion

Write a method to convert hours into seconds. Hint: In arrow functions, you don’t need to {} if the input is one liner.

Acceptance Criteria

• A minute has 60 seconds, and an hour has 60 minutes.
• You must use the arrow () => function.
• You must console.log the method to test the outcome.

Solution

const howManySeconds = hours => Number.1isInteger(hours) ? hours * 3600 : undefined;

console.log(howManySeconds(2))
// Ans: 7200

3. Maximum Triangle Edge

Make a function that determines the largest possible range for the third edge of a triangle whose side lengths are all integers.

Acceptance Criteria

• The third edge’s maximum range is (side1 + side2) – 1.
• The triangle’s side lengths are positive integers.
• You must use arrow () => function.
• You must console.log the method to test the outcome.

Solution

const nextEdge = (sidel, side2) => sidel + side2 - 1;

console.log(nextEdge(7, 9))
// Ans: 15

4. 100 or less?

Return true if the total of the two numbers is less than 100 when given two numbers. Return false if not.

Acceptance Criteria

• You must use arrow () => function.
• You must console.log the method to test the outcome.

Solution

const nextEdge = (sidel, side2) => sidel + side2 - 1;

console.log(nextEdge(7, 9))
// Ans: 15

5. Swap the Boolean

Make a function that gives back the boolean’s opposite as a number.

Acceptance Criteria

• Certain values can be evaluated to (or substituted for) booleans thanks to a programming concept called truthiness.
• For instance, 1 (or any number other than 0) often represents true, while 0 frequently represents false
• You must use arrow () => function.
• You must console.log the method to test the outcome of all the 4 different scenarios.

Solution

const flipBool=b =>b ? 0 : 1;

console.log(flipBool(1))
// Ans: 0

console.log(flipBool(true))
// Ans: 0

console.log(flipBool(0))
// Ans: 1

console.log(flipBool(false))
// Ans: 1

My Favourite JavaScript Learning Materials

Having been in your shoes, I know how difficult it is to locate reliable materials while trying to learn JavaScript. It might be difficult to find useful resources in the vast ocean of available books, videos, and online lessons. The books listed below were the only ones that helped me finally learn JavaScript after wasting months on useless materials. These books were game-changer for my career. They simplified difficult ideas, and then gave me practise with them so I could really have a feel for them. When compared to these books, the other materials I attempted fell short. Thanks to them, I was able to make massive progress in a short amount of time and land some great job opportunities.

  Jon Duckett

Web Design with HTML, CSS, JavaScript and jQuery Set

Before I stumbled upon this gem, I was stuck in a coding rut, endlessly googling syntax errors and feeling frustrated with my lack of progress. But after devouring this book, I finally understood the foundations of web design, from creating clean HTML to adding dynamic jQuery effects. It gave me the confidence to tackle even the most complex coding challenges with ease.

$46.85  $41.85

Order Now  

  Nick Morgan

JavaScript Crash Course

As someone with a short attention span, I needed a crash course that could hold my interest and teach me quickly. And boy, did this book deliver. The straightforward explanations and real-world examples made it easy for me to understand JavaScript’s most important concepts, and the quizzes at the end of each chapter made sure I actually retained the information. Thanks to this book, I was able to go from JavaScript zero to hero in record time.

$39.99  $34.99

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  David Flanagan (#1 Best Seller)

JavaScript

This book is a monster – in the best way possible. With over 1000 pages of in-depth explanations and examples, it’s the ultimate resource for anyone looking to truly master JavaScript. When I was preparing for my job interview, I knew I needed to go deep, and this book was my secret weapon. It covered everything from the basics to advanced topics like functional programming and ES6 syntax. Thanks to this book, I aced my interview and landed a six-figure job in just three months.

$31.5  $26.50

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Well done, coders!

I hope you enjoyed the basic javascript challenges I shared with you today. As someone who was once a struggling coder, I know how tough it can be to get started. But let me tell you, these challenges are just the beginning of your journey. Don’t worry, future parts will be much more exciting, so be sure to join my newsletter and wait for part 2! Trust me, it’ll be worth it.

And if you’re feeling frustrated, remember that even the best coders once started where you are now. The difference is that they didn’t give up. So keep pushing yourself, stay curious, and don’t forget to laugh at your mistakes. Because let’s be real, who hasn’t accidentally deleted their entire code at least once?

Thanks for joining me on this journey, and I can’t wait to see where your coding skills take you next.