Table of Contents

1. The JavaScript Law
2. The JavaScript Scope
3. The JavaScript Evolution
4. Closing Thoughts

1. The JavaScript Law

Any application that can be written in JavaScript, will eventually be written in JavaScript.
--Jeff Atwood,Author, Entrepreneur, Cofounder of StackOverflow

13 years ago, Jeff Atwood gave us what we now referred to as the JavaScript law.
It is interesting how JavaScript has evolved as a language. Although, it made a humble entrance into the programming world, in so much that it was namedJavascript so as to coax Java developers. The language has since grown stronger and has turned its fortunes around.

🎉The naming of JavaScript was pure marketing. JavaScript is to Java what Seahorse is to Horse

Time has past and the language has evolved tremendously beyond the imagination of many.

Today, JavaScript is everywhere.

🎉Like insects, JavaScript is ubiquitous.

While it began (primarily) as a desktop-constrained browser-only language launched by Netscape in 1995, it has conquered virtually every internet-connected platform on Earth: phones, tablets, desktop, servers, and thousands of devices in the Internet of Things.

💡The language has conquered the web and has even made its way into space.

2. The JavaScript Scope

JavaScript is an extremely versatile language. Once you’ve mastered it, the possibilities are endless, hence there are numerous job opportunities for JavaScript developers.

JavaScript developers often have a wide area of specialization. They can build front-end, back-end, mobile developers, and even desktop applications.

🎉The language has even applications in machine learning, blockchain, and IoT its scope is tremendous.

Below, are some areas of application of #"https://en.wikipedia.org/wiki/Isomorphic_JavaScript">isomorphic applications and gives a better developer experience among other advantages.
little wonder several big tech companies such asWalmart, Paypal, Netflix, Linkedin, Groupon (to name a few), were quick to adopt Node.js

• Mobile Development: This is an area you would expect to see the likes of Java, Kotlin, and Swift shine, not JavaScript. However, JavaScript again finds its way here and shines; I dare say brighter.With the likes ofReact Native, we are able to build cross-platformhybrid mobile applications using just HTML, CSS, and JavaScript.

Many company prefer this because it eliminates the need for building two separate codes for iOS and Android, it is cost-effective and easier to build and maintain. All this without actually trading off quality.
Somecompanies that power their mobile application with React Native are:
Slack, Bloomberg, Airbnb, Instagram, Skype.

• Desktop Application: This is the most unlikely place you would expect to see a language that was meant to live in the browser yet it is a shining star in this world.WithElectron.js desktop applications can now be built using JavaScript. As in other areas, JavaScript simplifies building a desktop application to a matter of writing just HTML, CSS, andJavaScript. Again this is very cost-effective and easier to build and maintain. Hence, it is preferred by many companies.

Notabledesktop applications built with Electron.js are:
Slack, Whatsapp, Microsoft Teams, Invision, Figma, Visual Studio Code, Twitch, Atom Text Editor

🎉Many languages have advertised themselves with quotes such as: "code once, run anywhere" or "learn once write anywhere", but JavaScript is the language that these quotes best describe. It is aptly called the language of the web

3. The JavaScript Evolution

With every new version of JavaScript, we see the language evolving for the better. New amazing features are being added and we get syntactic sugars where necessary (e.gJavaScript Classes). We have gone from writingcallbacks topromises and nowasync-await.

These improvements redound into all areas where JavaScript is applied.

As a result of these, the language has solidified its position as the language of the web. Today we use popular software architecture designs such asJAM Stack andSingle Page Application (SPA), but in the heart of both, we see JavaScript sitting as King.

In addition, as the language gets better it keeps expanding its scope of application. This means more job opportunities for JavaScript developers.

4. Closing Thoughts

There several other good reasons to learn JavaScript, the 3 above are for me the main ones. It is also worth mentioning that the language is very simple and beginner-friendly. And being very popular, there are tons of free learning material online.

I do hope I got you interested in the language or at least; I dare say made you appreciate your skill as a JavaScript developer more.

As always, if there are other notable mentions that I missed, or you have an opinion or correction to make, you are more than welcome to share it on the comment below.