A brief explanation to what hoisting means in the JavaScript programming languageJavaScript before executing your code parses it, and adds to its own memory every function and variable declarations it finds, and holds them in memory. This is called hoisting....
A callback function in JavaScript is a function that is passed as an argument to another function and is invoked after some kind of event.
JavaScript is a high-level, versatile, and widely used programming language primarily known for its role in web development. It allows you to add interactivity and dynamic behavior to websites, maki…
What Is JavaScript?Most simply put, JavaScript is a popular scripting language for adding interactive functionality and other dynamic web content to web pages. Well-known examples of JavaScript content include fillable forms, photo gallery slideshows, and animated graphics....
Web design today isn’t just about static pages.Dynamic content manipulationis a key player in making websites feel alive. Using JavaScript, you can directly manipulatethe Document Object Model (DOM), changing content, styles, and even structural aspects of a webpage in response to user actions...
The JavaScript code creates or modifies HTML on the fly to produce dynamic content and interact with back-end data stores. When used this way, JavaScript is called a client-side language, with one of its most lucrative applications being mobile games. Server-side frameworks like Node.js extend...
And because JavaScript is compiled into machine code as it’s executed (referred to as just-in-time compilation), simple functions and processes are performed quickly. This results in lots of dynamic, interactive utility. Other languages, such as C and C++, use ahead-of-time compilation. This...
A scripting language like JavaScript (JS, for those in the know) does the heavy lifting by telling computer programs like websites or web applications to “do something.” In the case of JavaScript, this means telling those dynamic features described earlier to do whatever it is they do—...
This section provides a quick description of what is JavaScript.© 2025 Dr. Herong Yang. All rights reserved.What is JavaScript? JavaScript is a scripting language mainly used for writing dynamic Web pages. When a script written in JavaScript is embedded in a Web page, it will be executed ...
This section provides you some basics of JavaScript language.© 2025 Dr. Herong Yang. All rights reserved.JavaScript is simple scripting language that can be used inside Web pages to generate dynamic page contents. From a language syntax point of view, JavaScript is very similar to Java. Java...