Best Javascript Projects

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By Vijay Singh Khatri

JavaScript is one of the best programming languages to learn in 2021, and there is no better way to learn a programming language than to start creating projects using it. But the idea to create a project is one thing and to make a project that meets the goal is another. When you are thinking about starting a project, you must know what skills you will be using to complete the project. However, to begin with, take a project that is not too simple, or complex.

Thus, finding the right project might take some time, but fret not, we are here to help you out. Today we have compiled the list of some of the best JavaScript projects that you can create to test out your skills and see how much knowledge you have about JavaScript.

Things to Learn to Create a JavaScript Project

JavaScript is, without any doubt, one of the essential web development languages that are being used today. As a developer, you are free to add a wide range of functionalities to your website or web application using JavaScript. So it doesn’t matter if you are a beginner or an expert in JavaScript programming; you must be aware of these features of JavaScript to be able to code with efficiency and accuracy.

1. Asynchronous Programming

Many JavaScript developers ideally write their code synchronously. It means when the machine is executing the block of code, only a single line of code will be executed by the compiler at a given time. The execution of code follows the order in which the code is written. When you are using this type of programming, the performance will automatically bump up, but you need to wait for each operation to finish first before the compiler moves onto the next one. As a result, you are surely going to wait for a long time before the program gets fully executed. With the use of Asynchronous programming, a developer gets to run the code concurrently. That means the compiler doesn’t wait for each operation to be completed first as it executes all the operations at once.

2. Functional Programming

This might not seem like an important skill to have, but the ability to write the code purely with functions makes you an expert. This skill can completely change how quickly and efficiently you solve problems. When writing the code in functional programming, you will be avoiding the shared states, mutation of data alongside effects. As a result, the code will be much more concise and easier to debug. Moreover, since the code is relatively concise, it will be executed much faster, thus reducing your load times. There’s no denying the fact that learning functional programming is a bit hard, but once you get a hold of it, you will know it is worth the time spent.

3. Writing Cross-Browser Code

As an Internet user, you are not always going to stick with a single browser. Thus, as a JavaScript programmer working on a web development project, you need to write a code that runs on every browser, no matter from which device it is opened.

4. Memory Management

This skill takes time to acquire but is not hard to master. Any web application that you are developing can leak memory, causing it to slow down if the code is not inclined toward saving up the memory space. On the other hand, in some cases, memory leaks could cause massive performance fluctuations, causing the application to consume tons of resources and not perform at the optimal speed. When you write the code that utilizes memory and the system resources correctly, you get extra performance.

5. Keep Up with the Industry

This might come as a surprise, but you need to be aware of what’s happening in the industry and keep up with all the changes that are happening. Each year, new trends come in the programming language. One needs to follow and adjust themselves accordingly to stay relevant in the competitive market. There could be a new framework or library which everyone is using, and so as a JavaScript developer, you too need to embed it in your project and make it work. The key to being a successful JavaScript developer is to learn new ways to write the code to increase its efficiency. This way, you will be able to offer better solutions to the client.

Where Can You Use JavaScript?

JavaScript, without a doubt, is one of the most used programming languages in the market right now. Given below, we have marked out some of the significant use cases of JavaScript and how JavaScript’s implementation will be helpful to you.

1. Web Development

The first use of JavaScript is the client scripting language that helps a developer in creating web pages. JavaScript can create a dynamic webpage with special effects such as rollover, roll out, and other types of graphical enhancements. This will make the webpage visuals more appealing to the viewer.

2. Web Applications

The browsers have been improved to such an extent that a new language was required to make them robust. Just think about using Google Maps; with just a single click, you will be able to load up all the information. All this is possible due to the implementation of JavaScript, as the code written in JavaScript communicates with the browser and sends the message to and fro to the servers. Besides, JavaScript gives extra power to the code as it uses Application Programming Interface (API) for the development.

3. Presentations

One can even create a website as a presentation. For it to work perfectly, you need RevealJS and BespokeJS libraries installed in your system. These two libraries are web-based slide decks that allow the creation of some of the best and most interactive decks by using HTML scripting. One can even add in the nested slides without knowing much about the programming language. One of the great things about these presentations is that they are touch-optimized and work great with touch screen devices such as smartphones, tablets, and laptops.

4. Server Application

NodeJs is one of JavaScript’s runtime environments that is used for building fast and highly flexible applications. In addition to this, NodeJS uses efficient applications that are to be distributed over the systems with the help of the server. Moreover, it is also used to handle the request sent by HTTP from the browser to the server.

5. Web Servers

You can create a web server using NodeJS. The main advantage of using NodeJS is that it is event-driven, and once the execution starts taking place, it will not wait for the response of the previous call. It moves to the next call and sends in the notification of the previous call once it is done. As a result, the servers which are built using NodeJS are pretty fast, and don’t use buffering, and also provide the transfer of data in massive amounts.

Other Use Cases of JavaScript

JavaScript is also used in developing video games such as Minecraft and even heavy 3D AAA games. Likewise, one can even create art using HTML5 in JavaScript. All the three-dimensional and two-dimensional shapes can be quickly drawn on the graphs leading to new forms of digital art projects.

Lastly, both Android and iOS apps can be created using JavaScript, all thanks to its ‘Write once, run anywhere’ programming language status. All the new mobile applications are being developed using JavaScript in one way or the other.

Top JavaScript Projects to Test Your Skills in 2021

Let’s now move on to the projects that you can develop with JavaScript to showcase your skills. These projects can be used in your resume to provide a better idea of your skills and knowledge about JavaScript. We will start from the easiest project and then move on to the complex projects that will test your logical thinking and code writing skills.

1. Build a Clock

One of the easiest things you can build using JavaScript is a clock that has a self-updating time feature. The clock is one of the practical applications that you can make as a starter and create the UI according to your liking. A clock is a great project that comes with real-world applications in train, bus, and flight booking websites. In addition, as a developer, you have the choice of making an analog watch or a digital watch, and make them attractive with the help of CSS.

2. Calculator

The next project that comes to mind after you have finished developing a clock is a calculator. The code you will be writing for the calculator will be a bit more difficult as there are many mathematical conditions that you need to work on actually to make a useful calculator. Also, you need to provide each mathematical condition with buttons. To make a calculator, you will need a working knowledge of HTML, CSS, and other important functions of JavaScript. The main reason for using JavaScript when developing a calculator is that when you press any button, for example, subtract, then the respective function we will use is going to be JavaScript. You can define if the calculator only works with the mouse events, or it can also take input from the keyboard and touch screen.

3. Tic-tac-toe Game

When you were in school, you might have played this game with your friends. It sure is fun, but do you know, creating the same game using JavaScript on the computer is pretty easy too. We have provided you with a link that can help you get things rolling, and it’s a basic version of the step-by-step code writing and logic understanding of the game. Once you get the hang of it, you can extend the game into many vertical and horizontal blocks to test your skills. As a developer looking to create this project and make it look great, you will be working on the pseudocode.

4. Weather App

We have asked you to make a clock, a calculator, so indeed you have seen this coming. A weather app is a good start for students to fetch the data from an online repository and display it on their app. Also, you can make it a widget for your laptop or mobile phone. One thing we would love to see in the app is the weather update of different locations, and once you change the location, the page doesn’t refresh, but it changes up the information present on the screen to provide a smooth experience to the user. Moreover, you can choose how you want to write and save the code. You can have separate files for both the front and back ends, or you can save all of them in one file, which could be an HTML file. But if you ask us, we would opt for a separate file approach.

5. Build a JavaScript-based Drawing

This project can help you showcase your creativity on the screen. This project requires you to have the basic knowledge of CSS and HTML as these two scripting languages you will be using to get your drawing on display. Also, creating a static drawing on the screen is pretty easy, so we want you to dial up the difficulty notch a little bit and try for a dynamic moving JavaScript-based drawing. There are tons of source code available on the Internet that could help you understand what you need to do for creating your first drawing using JavaScript programming.

6. To-Do List

In terms of developing interactive elements, JavaScript is the language that comes in quite handy. With the help of JavaScript, you can add, remove and group the various items in your to-do list application which isn’t possible when you are working with HTML and CSS. If you are someone who always forgets about deadlines, then creating your own custom to-do list application will surely help you to be on track and finish up your work.

7. JavaScript Music App

Last on the list of unique JavaScript projects is the music streaming app. Yes, you can create your music app using JavaScript, it might not be as refined as Spotify, but surely you can give it a personal touch and customize it according to your liking. You will need HTML for creating the layout of the application along with CSS styling to make the application look more visually appealing. After that, the most crucial part of the project is creating the logic that binds both the CSS and HTML, allowing both of them to work in harmony. In this file, you will be writing the code for all the functions that will work together to provide you with an excellent music listening experience and user interface.


These were some of the best JavaScript projects that you can write by yourself and learn the basics of JavaScript. In addition, you will get to know which scripting language works great for your projects. Moreover, when you complete this project, you can put their source code on GitHub and help other developers in writing their code.

With these projects, you will be building a great portfolio that will offer new opportunities that you are seeking in the field of computer science. In the end, we would like to close this article with one thought, don’t just copy and paste the code and call it your application. No one is there to see if you have written the code by yourself or have pasted it from somewhere else.

If you don’t have the idea on how to write the code, take guidance from other developers that are available in the online forum. But don’t just copy the code. Write it by yourself. This will be the best way to learn a new programming language along with its implementation and syntax.

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