JAVASCRIPT
?Introduction
JavaScript is a programming language used primarily by Web browsers to create a dynamic and interactive experience for the user. Most of the functions and applications that make the Internet indispensable to modern life are coded in some form of JavaScript.
The earliest incarnations of JavaScript were developed in the late 1990s for the Netscape Navigator Web browser. At the time, Web pages were static, offering little user interaction beyond clicking links and loading new pages. For the first time, JavaScript enabled animation, adaptive content and form validation on the page.
JavaScript did not become standardized and widely adopted until 1999. Even after standardization, browser compatibility remained an issue for over a decade.
JavaScript is used in almost every domain
What is JavaScript used for?
JavaScript is mainly used for web-based applications and web browsers. But JavaScript is also used beyond the Web in software, servers and embedded hardware controls. Here are some basic things JavaScript is used for:
1.?Adding interactive?behavior?to web pages -?JavaScript allows users to interact with web pages. There are almost no limits to the things you can do with JavaScript on a web page – these are just a few examples:
2.?Creating web and mobile apps -?Developers can use various JavaScript frameworks for developing and building web and mobile apps. JavaScript frameworks are collections of JavaScript code libraries that provide developers with pre-written code to use for routine programming features and tasks—literally a framework to build websites or web applications around.?
Popular JavaScript front-end frameworks include React, React Native, Angular, and Vue. Many companies use Node.js, a JavaScript runtime environment built on Google Chrome’s JavaScript V8 engine. A few famous examples include PayPal, LinkedIn, Netflix, and Uber!
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3. Building web servers and developing server applications -?Beyond websites and apps, developers can also use JavaScript to build simple web servers and develop the back-end infrastructure using Node.js.
4.?Game development -?Of course, you can also use JavaScript to create browser games. These are a great way for beginning developers to practice their JavaScript skills.
Industry using JavaScript:
JavaScript comes under the most important one:
Case Study on Major Companies using JavaScript
1.?Microsoft -?First off, Microsoft needs to work closely with JavaScript to built its Edge web browser. All browsers need to process and execute JavaScript efficiently, so Microsoft has developed and maintains its own JavaScript engine for Edge. Actually, there has been talk of them creating an alternate version of NodeJS with the Edge engine. Recently, Microsoft has really embraced NodeJS. They thoroughly support Node on the Azure cloud platform. Its one of Azure’s major features, and they’ve integrated Visual Studio support for Node. Microsoft has also developed a version of Node for?Internet?Of?Things(IoT) applications. NodeJS is great of IoT because it’s light weight and efficient.
2.?PayPal -?PayPal has obviously been using JavaScript on the front end of their website for a long time, but that’s only the beginning. The online payment giant was one of the earliest adopters of NodeJS. During an overhaul of their account overview page, they decided to try building the page in Node at the same time as their usual Java development. The NodeJS version worked out so well, that they chose to use it in production and build all client-facing applications in Node going forward. That means that most of what you see in your account is running on Node. PayPal even went as far as to create and maintain their own version of Express, called KrakenJS. It’s pretty obvious that they like JavaScript over at PayPal.
3.?Netflix -?Like PayPal, Netflix started out using Java for just about everything. They too ran into problems with Java’s size and the time it required to develop. Over time, Netflix moved away from its more traditional structure into the cloud and started to introduce NodeJS. With Node, Netflix was able to break down pieces of their user interface into individual services. This more distributed approach was able to speed things up an alleviate stress on their servers. Today, a large portion of Netflix’s interface is running on Node.
Conclusion
JavaScript is a technology with a bright future. The capability and flexibility of JavaScript allow businesses to build robust software solutions that drive excellent results. Trends show that JS will witness remarkable growth in the years to come, thanks to its high adoption rate and increasing popularity. And it continues to evolve and enrich its features to meet the requirements of the modern business environment. The power of JavaScript is immense, and organizations can leverage it for building excellent web solutions; however, the final choice of technology should depend on whether it meets the specific requirements of the project.??