What is JavaScript?

JavaScript is an incredibly popular programming language, but not many people understand it. Even though it is very simple to learn. JavaScript is a flexible and robust programming language that makes adding functionality to your website or web app easy. This programming language allows websites to make complex operations like video playback, animation, and form validation.

Easy to Navigate

JavaScript is a powerful programming language used to create websites and applications. It’s easy to learn, and many resources are available online to help you get started. Once you’ve learned the basics of JavaScript, you’ll be able to create anything.  Simple websites with a few lines of code to complex applications that run in the browser will be no problem.

Powerful Language

JavaScript is a versatile and dynamic programming language. It’s easy to use, and once you learn it, you’ll appreciate how well it works with websites. It is a scripting language. This means a programming language that can be interpreted by a program instead of compiled into machine code. Many use it to add interactivity and other features to websites. You’ve interacted with JavaScript on many different websites without realizing it!

JavaScript was first developed by Brendan Eich in 1995 at Netscape. Introduced as open-source software in 1997. Since its versatility has become the go-to programming language for web developers and designers. You may find it used for tasks ranging from adding interactivity and functionality. Or modern websites (e.g., animations), mobile apps, and even games! Learning to use JavaScript will make you an invaluable resource for any company. Especially ones looking for someone who knows how this powerful tool works (and doesn’t just know what “this” means).

Increased Interactivity

JavaScript can add interactivity and dynamics to web pages and web applications. JavaScript is a programming language created to make web pages more interactive and dynamic.

JavaScript is a client-side scripting language because it runs on the user’s browser, not their computer. It can add effects to your content (like buttons or drop-down menus) and create animations visible only when viewing your site on a laptop or desktop computer instead of an iPhone/iPad app.

JavaScript is also an excellent way to add interactivity to your website or web application. You can use JavaScript to create a drop-down menu appearing when someone clicks on an item in your navigation bar. Or you want to include some sort of “Loading…” message while your website loads. All its content and functionality after it has been opened—this, too, can be done using JavaScript.

Faster Speed

JavaScript runs in the browser, meaning that you don’t need any special software for it to work. The code is processed by a built-in engine in the browser. The benefit is your website will run faster since there’s no need to download any additional files from a server.

Since it runs on the client side (your computer) and not on a separate server somewhere else. This allows you to use JavaScript to add interactivity and dynamics to web pages. And not relying on an external service like Amazon AWS or Heroku.

Debugging in Easy

Debugging is the process of finding and fixing bugs in software. It’s a crucial part of the software development process because it’s hard to predict what will happen with your code when you run it. JavaScript is easy to debug because it’s a dynamic language. Once your program runs, mistakes can be immediately found using a debugger   Google Chrome DevTools.

Built-In Engine

All modern web browsers have a built-in JavaScript engine that executes and processes the code. JavaScript is a language that runs in the browser. It’s not a programming language, markup language, or general-purpose programming language. Instead, it’s an interpreted scripting language that runs on top of HTML and CSS.

The JavaScript engine was initially developed by Google for Chrome. As such, there are two main engines: V8 (Chrome) and SpiderMonkey (Firefox). Other browsers have engines, like Microsoft Edge. Still, these use V8 or SpiderMonkey under the hood, so we’ll focus on those two here.


JavaScript is a widely popular programming language the world over. It’s used by over 90% of websites and has a wide array of uses: from simple web development to games and more.

It can create interactive elements on web pages and build applications with React or Vue.js. Plus, create games like Minecraft or PUBG Mobile.

Advance Your Career

It’s something you should learn if you want to get into web development, and it’s also helpful if you want to build games. It has many uses beyond just creating websites, so if you’re interested in learning JavaScript, this course will be an excellent resource.

View Source

To find out if a website is using JavaScript, all you need to do is check your browser’s View Source.

Viewing the HTML code of a website can be done in one of two ways:

In most browsers, you can right-click on the page and select “View Page Source.”

In other browsers, you may be able to press Ctrl + U or Command + U on Macs.

There are multiple ways to tell if a website uses JavaScript if you are looking for a way to verify this information. We suggest checking out the View Source section of your browser’s developer tools. It is also worth mentioning that this method works in all major browsers and operating systems, including Chrome, Firefox, and Safari.


We hope this has helped you have a better understanding of JavaScript now. So what does the future hold? It seems highly likely that JavaScript will continue to thrive. This language offers countless possibilities, which is what has made it so compelling and so widely adopted. Some people learn a simple version of JavaScript and never advance past it. In contrast, others are more ambitious and want to venture beyond the browser to build mobile apps and games.