What is JavaScript? JavaScript is the programming language of the web. It can update and change both HTML and CSS. It can calculate, manipulate and validate data.

5 days ago · JavaScript syntax refers to the rules and conventions dictating how code is structured and arranged within the JavaScript programming language. This includes statements, expressions, variables, functions, operators, and control flow constructs.

Mar 6, 2025 · JavaScript is a cross-platform, object-oriented scripting language used to make webpages interactive (e.g., having complex animations, clickable buttons, popup menus, etc.).

Aug 8, 2022 · Today, JavaScript has a unique position as the most widely-adopted browser language, fully integrated with HTML/CSS. There are many languages that get “transpiled” to JavaScript and provide certain features. It is recommended to take a look at them, at least briefly, after mastering JavaScript.

Learn how to use JavaScript — a powerful and flexible programming language for adding website interactivity. You interact with JavaScript code all the time — you just might not realize it.

JavaScript is the programming language of the Web. JavaScript is easy to learn. This tutorial will teach you JavaScript from basic to advanced. With our "Try it Yourself" editor, you can edit the source code and view the result. We recommend reading …

Mar 1, 2020 · A brief intro to the syntax of JavaScript. In this little introduction I want to tell you about 5 concepts: white space. case sensitivity. literals. identifiers. comments. White space. JavaScript does not consider white space meaningful. Spaces and line breaks can be added in any fashion you might like, at least in theory.

Mar 7, 2022 · Take Udacity's free Intro to Java course and master the fundamentals of JavaScript, the most popular programming language in web development. Learn online with Udacity.

2 days ago · Modern JavaScript Tutorial: simple, but detailed explanations with examples and tasks, including: closures, document and events, object oriented programming and more.

You’ll begin with core JavaScript concepts like variables, conditions, and loops, then gradually build up to more advanced topics such as data structures, error handling, and asynchronous functions.