How to create, delete, append and replace element nodes in js (with code examples)

This article mainly introduces how to create, delete, append and replace element nodes in js. I hope it will be helpful to friends in need!

一.Create element nodecreateElement Add node node.appendChild(child) -->node parent child child element is appended to the end

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2.InsertBefore node.insertBefore( child, specified element)--> node parent child child

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3.

node.removeChild(child)--> node parent child child

4.

Parent.replaceChild(Node Object 1, Node Object 2)-->The first parameter is the newly created node, and the second node is the replaced one Node

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