Usage of JavaScript (JS) in Web Applications
JavaScript is a dynamic computer programming language. It has become a critical component in developing Web applications, most commonly used as part of web browsers, whose implementations allow client-side scripts to interact with the user, control the browser, communicate asynchronously, and alter the content that is displayed.
JavaScript works with HTML and CSS to make user experience better. JavaScript can be used to change the content, attributes, styles as well to validate data.
JavaScript is just not for programming browsers they are used in Enterprise Applications, Servers and Databases.
JavaScript is an object oriented language that uses prototypical inheritance instead of classes. JavaScript is also dynamic, so the types aren’t fixed at compile time because there really isn’t a compile time. JavaScript, in most cases, compiled down to machine code as it’s being used.
JavaScript code need to maintain standards for formatting and styling the code, any code-base should look like a single person typed it, no matter how many people contributed.