Based on JS, the news list can seamlessly scroll up the instance code and js News list

Based on JS, the news list can seamlessly scroll up the instance code and js News list

When there are a lot of news and there is no limit at all, using scroll is a good choice. This chapter describes how to achieve this through code examples.

The code example is as follows:

<! DOCTYPE html> 
The above code implements the rolling effect of the News list. The following describes the implementation process:
I. Implementation principle:
The general principle is as follows. The demo element has two sub-elements demo1 and demo2, and stores the content in demo1 into demo2. The reason for this is to scroll up, demo2 can be connected to the end of demo1. Otherwise, it will not be seamless rolling, but a rolling gap. When demo1 content is completely blocked, that is, demo1 completely rolled up, demo2 is exactly at the position where demo1 starts to scroll, and then re-sets the scrollTop value of the demo so that the Scroll will come over again, thus achieving seamless scrolling.
This section describes how to seamlessly scroll up the instance code in the News list based on JS. I hope you can apply this code according to your actual needs.
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