Use JS to complete the operation of node additions, modifications, etc.

  This article for everyone in detail under the use of JS to complete the node of the deletion and modification of the operation, and so on, the specific implementation of the following, interested friends can refer to the following

Requirements: Completion of node additions and deletions copy operations     methods and attributes:  1. Gets the parent node of a node   ParentNode property   2. Gets the set of child nodes for a node   ChildNodes Properties   3. Create a key a new node   createtextnode (node text content) The method of the Document object is not very well compatible with some browsers   createelement (object) Methods for document objects such as: Document.createelement ("a");  4. Add attributes and property values   setattribute (attributes, property values) to a node object; For example: Anode.setattribute ("href", "http://www.baidu.com");  5. Replace the child nodes under one node   ReplaceChild (new node, atomic node);  6. Add a node under a node   appendchild (node to add)   7. Clone a node     CloneNode () without passing the parameter and passing in the true parameter, the clone node includes the child node   The code is as follows: <! DOCTYPE html>