DOM - Node

About

In DOM, every markup in an (XML|HTML) document is a node represented in a tree view.

Every DOM node has at least:

a type,
a name,
and a value, which might or might not be empty.

Example

<html>
  <head>
    <title>My Title</title>
  </head>
  <body>
    <h1>My First chapter</h1>
    <p>My Text and<a href="gerardnico.html">My Link</a></p>
  </body>
</html>

DOC: nodeName="#document"
  ELEM: nodeName="html" local="html"
    ELEM: nodeName="head" local="head"
      ELEM: nodeName="title" local="title"
        TEXT: nodeName="#text" nodeValue="My Title"
    ELEM: nodeName="body" local="body"
      ELEM: nodeName="h1" local="h1"
        TEXT: nodeName="#text" nodeValue="My First chapter"
      ELEM: nodeName="p" local="p"
        TEXT: nodeName="#text" nodeValue="My Text and"
        ELEM: nodeName="a" local="a"
            ATTR: nodeName="href" local="href" nodeValue="gerardnico.html"
              TEXT: nodeName="#text" nodeValue="gerardnico.html"
          TEXT: nodeName="#text" nodeValue="My Link"

Type

Node Type	Children Node
Attr	Text, EntityReference
CDATASection	no children (ei XML cdata)
Comment	no children
Document	Element (maximum of one), ProcessingInstruction, Comment, DocumentType (maximum of one)
DocumentFragment	Element, ProcessingInstruction, Comment, Text, CDATASection, EntityReference
DocumentType	no children
Element	Element, Text, Comment, ProcessingInstruction, CDATASection, EntityReference
Entity	Element, ProcessingInstruction, Comment, Text, CDATASection, EntityReference
EntityReference	Element, ProcessingInstruction, Comment, Text, CDATASection, EntityReference
Notation	no children (ie XML Notation)
ProcessingInstruction	no children
DOM - Text (node)	no children, no class, …

Management

Get

See DOM - Selection of Node Element (querySelector)

Get type

With the DOM Web API, see en-US/docs/Web/API/Node/nodeType

Append

Remove

Pure Javascript

element.remove()

Jquery

// if not removed
if (jQueryElement.parent().length >0) {
    jQueryElement.remove();
}

Move

DOM - AppendChild