Javascript

Javascript

JavaScript is a commonly used web development programming language. It was originally created by Netscape as a means of adding websites with dynamic and interactive elements. While JavaScript is inspired by Java, the syntax is more similar to C and is based on the Sun Microsystems-developed scripting language ECMAScript. JavaScript is a scripting language on the client-side, meaning that the source code is processed rather than on the web server by the client's web browser. This ensures that JavaScript functions can be run without interacting with the server after a web page has been loaded. For example, a web form can be reviewed by a JavaScript function before it is submitted to ensure all the necessary fields have been filled out. Until any information is actually transmitted to the server, the JavaScript code can generate an error message. JavaScript code can be embedded anywhere inside the HTML of a website, much like server-side scripting languages such as PHP and ASP. However, only server-side code output is shown in HTML, while JavaScript code remains completely visible in the webpage source. Although standard JavaScript is still used to perform simple client-side functions, JavaScript libraries including jQuery are now preferred to be used by many web developers to introduce more complex dynamic elements to websites.