Do web developers have to master complex component technologies to speed up access to HTML pages? The answer is: not necessarily! In fact, there are many techniques for HTML and DHTML that are simple and easy to use. Whether you are a highly skilled veteran or a newbie to programming, understanding these is essential.
Obviously HTML, hidden "common script"
The key to reducing web page download time is to try to reduce the file size. When multiple pages share some component content, you can consider separating these common parts separately. For example: we can write a script used by multiple HTML pages into an independent .js file, and then call it in the page as follows:
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
