JavaScript Industry Use Cases
JavaScript is a text-based programming language used both on the client-side and server-side that allows you to make web pages interactive. Where HTML and CSS are languages that give structure and style to web pages, JavaScript gives web pages interactive elements that engage a user. Common examples of JavaScript that you might use every day include the search box on Amazon, a news recap video embedded on The New York Times, or refreshing your Twitter feed.
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.
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!
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.
Netflix
Netflix is the world’s supplier of flowing broadcast and television. Netflix is the world’s top supplier of flowing broadcast and television. The company decided to embrace fast and easy Node.JS.
Earlier, Netflix was using Java on the back end and JavaScript on the front end, which required the developers to be proficient with languages.
As a result, they had to do double work for error handling, activity tracking, and debugging.
Netflix is now among companies using Node.JS due to the following reasons:
- A common language both for the server-side and browser side.
- High performance — now the page loads within seconds.
- A great number of modules and their open source nature.
- An easy way of writing, debugging, and engineering the API.
