Consider this variable declaration:
考虑这个变量声明：
const element = <h1>Hello World!</h1>
This funny tag syntax is neither a string nor HTML.
这个搞笑的标签语法既不是字符串也不是HTML。
It is called JSX, and it is a syntax extension to JavaScript. We recommend using it with React to describe what the UI should look like. JSX may remind you of a template language, but it comes with the full power of JavaScript.
它被叫着JSX。它是JavaScript的语法扩展。我们建议使用它来描述UI的样子。你也许会认为JSX是个模板语言，但是它却拥有JavaScript的全部能力。
