TypeScript extends JavaScript by adding types to the language. TypeScript speeds up your development experience by catching errors and providing fixes before you even run your code.
前景 · Go语言中文文档
现代 JavaScript 教程：有关示例和任务的简单但详细的解释包括：闭包、文档和事件，以及面向对象编程等。
The MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps.
