JS using DOM to implement Simple message board method _javascript Tips

This article illustrates the way JS uses DOM to implement a simple message board. Share to everyone for your reference. The specific analysis is as follows:

As shown in the simple message board, that is, the entertainment version, plainly is the practice of DOM operation.

Important One: document.createelement ("label name") new element

Important two: the parent element. AppendChild ("element") inserts the newly created element into the label of the page (the last display of the label) so that it is displayed in the browser

Important three: the parent element. InsertBefore ("element", "front of which element to insert") inserts the newly created element in front of the label specified in the page so that what is entered later is displayed to the previous

Key four: The parent element. RemoveChild ("element") deletes the specified element

Below, on the code:

<! DOCTYPE html>