使用 Node.js 需要了解多少 JavaScript？
🌐 How much JavaScript do you need to know to use Node.js?
作为初学者，很难达到对自己的编程能力足够自信的程度。在学习编程的过程中，你可能也会困惑 JavaScript 的范围在哪里结束，Node.js 又从何开始，反之亦然。
🌐 As a beginner, it's hard to get to a point where you are confident enough in your programming abilities. While learning to code, you might also be confused at where does JavaScript end, and where Node.js begins, and vice versa.
在深入学习 Node.js 之前，建议先学习什么？
🌐 What is recommended to learn before diving deep with Node.js?
记住这些概念，你就有望成为一名熟练的 JavaScript 开发者，无论是在浏览器还是在 Node.js 中。
🌐 With those concepts in mind, you are well on your road to become a proficient JavaScript developer, in both the browser and in Node.js.
异步编程
🌐 Asynchronous Programming
以下概念也是理解异步编程的关键，异步编程是 Node.js 的基本部分之一：
🌐 The following concepts are also key to understand asynchronous programming, which is one of the fundamental parts of Node.js: