What are the practical API in HTML5

This article mainly shows you "what are the practical API in HTML5", the content is simple and clear, and I hope it can help you solve your doubts. Let the editor lead you to study and learn "what are the practical API in HTML5"?

Element.classList

ClassList API provides a basic function of controlling CSS that we have implemented over the years using the JavaScript toollibrary:

The code is as follows:

/ / add a CSS class

MyElement.classList.add ("newClass")

/ / Delete a CSS class

MyElement.classList.remove ("existingClass")

/ / check whether there is a CSS class

MyElement.classList.contains ("oneClass")

/ / reverses the existence of a CSS class

MyElement.classList.toggle ("anotherClass")

The main value of this new API is: simple and practical.

ContextMenu API

This new ContextMenu API is very useful: instead of replacing the original right-click menu, it adds your custom right-click menu to the browser's right-click menu:

The code is as follows: