JavaScript Tutorial - W3Schools
网页JavaScript is the world's most popular programming language. JavaScript is the programming language of the Web. JavaScript is easy to learn. This tutorial will teach you JavaScript from basic to advanced. Start learning JavaScript now ».
JavaScript | MDN - MDN Web Docs
网页2024年3月5日 · JavaScript (JS) is a lightweight interpreted (or just-in-time compiled) programming language with first-class functions. While it is most well-known as the scripting language for Web pages, many non-browser environments also use it, such as Node.js, Apache CouchDB and Adobe Acrobat.
Introduction - JavaScript | MDN - MDN Web Docs
网页2024年8月7日 · JavaScript is a very free-form language compared to Java. You do not have to declare all variables, classes, and methods. You do not have to be concerned with whether methods are public, private, or protected, …
JavaScript Tutorial
网页Fundamentals. Syntax – explain the JavaScript syntax, including whitespace, statements, identifiers, keywords, expressions, and comments. Variables – show you how to declare variables. Data types – introduce to you the JavaScript data types, including primitive and reference types.
The Modern JavaScript Tutorial
网页3 天之前 · Modern JavaScript Tutorial: simple, but detailed explanations with examples and tasks, including: closures, document and events, object oriented programming and more.
JavaScript — Dynamic client-side scripting - Learn web ...
网页2024年7月25日 · JavaScript — Dynamic client-side scripting. JavaScript is a programming language that allows you to implement complex functionalities on web pages. Every time a web page does more than just sit there and display static information for you to look at—displaying timely content updates, interactive maps, animated 2D/3D graphics, scrolling ...
An Introduction to JavaScript
网页2022年8月8日 · For instance, in-browser JavaScript is able to: Add new HTML to the page, change the existing content, modify styles. React to user actions, run on mouse clicks, pointer movements, key presses. Send requests over the network to remote servers, download and upload files (so-called AJAX and COMET technologies).
JavaScript Introduction - W3Schools
网页JavaScript was invented by Brendan Eich in 1995, and became an ECMA standard in 1997. ECMA-262 is the official name of the standard. ECMAScript is the official name of the language. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, …
What is JavaScript? - Learn web development | MDN - MDN Web Docs
网页2024年8月3日 · JavaScript is a scripting language that enables you to create dynamically updating content, control multimedia, animate images, and pretty much everything else. (Okay, not everything, but it is amazing what you can achieve with a few lines of JavaScript code.) The three layers build on top of one another nicely.
An introduction - The Modern JavaScript Tutorial
网页About the JavaScript language and the environment to develop with it. An Introduction to JavaScript. Manuals and specifications. Code editors. Developer console. Ctrl + ← Ctrl …