Important Facts About JavaScript


Important Facts About JavaScript

JavaScript, also known as JS, is a popular web technology that is used on client side of websites. It is a powerful language that incorporates third-party libraries. More than 97% of all websites use it on the client side of their sites. Here are some of the most important facts about JS: It is widely used throughout the World Wide Web and is an essential part of the HTML and CSS stack. Besides HTML and CSS, JS is often used with Adobe Flash and other third-party libraries.

JavaScript is a programming language that makes your web pages interactive. The scripts are written in the HTML of a page and run automatically when the page loads. Unlike HTML, a JavaScript script requires no special preparation and compilation to use. The language was originally named LiveScript, which means it was designed for web pages. It is similar to the popular programming language, and is a great alternative to the popular C++. Listed below are some of its most common features.

As a first-class object, a function is a type of object that may contain properties or methods. It is also possible to define nested functions, which are defined within a different function. When the outer function invokes a nested one, the inner one is created. A nested function is a lexical closure, and the outer function becomes part of the inner’s state. In addition to nested functions, JavaScript supports anonymous functions and implicit delegation, which makes it easier to write code for your website.

JavaScript is a powerful programming language, and it has numerous benefits. While HTML renders content and CSS styles pages, JavaScript makes the site interactive. For example, the message changes when the user clicks on it, and it becomes sarcastic as the number increases. A simple example of a website using JavaScript is an animated GIF, which uses a lot of video and audio. It is easy to learn and use.

As a first-class object, functions may have properties and methods. They can be nested. The outer function invokes the inner one. In this way, it forms a lexical closure. As a result, the inner function’s internal state becomes the outer function’s lexical scope. As a second-class object, it also supports anonymous functions. Its lexical scope is not affected by the nested function.

As a first-class object, a function may have methods and properties. It can be nested. A nested function is a function that is defined within another. This type of function is created by calling the outer one. It forms a lexical closure, meaning that the lexical scope of the outer one becomes part of the inner function’s internal state. Furthermore, JavaScript supports anonymous and implicit functions.