Javascript method to delete child nodes: first obtain the parent node object and child node object; then use the removeChild() method to delete the child node, the syntax is "parent node object.removeChild (child node object)". The removeChild() method can delete a child node on the parent node.
The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.
javascript deletes child nodes
The removeChild() method can delete a child node on the parent node.
Syntax:
parentNode.removeChild(nodeName)
nodeName: The name of the current node
parentNode: The parent node of the current node
Example:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <style> div{ border: 2px dashed #006DAF; padding: 10px; } p{ background-color: palegoldenrod; } </style> </head> <body> <div>div元素--父元素 <p>p元素--子元素</p> <p>p元素--子元素</p> </div> <br /> <input id="btn" type="button" value="删除子节点"> </body> <script> function deleteChild() { var div = document.querySelector("div"); var p = document.querySelector("p"); div.removeChild(p); } var btn = document.getElementById("btn").onclick = function() { deleteChild(); } </script> </html>
Rendering:
##[Recommended learning:javascript advanced tutorial]
The above is the detailed content of How to delete child nodes in javascript. For more information, please follow other related articles on the PHP Chinese website!