Operation attribute nodes plus other nodes

 Node attribute value is returned nodeType
                Node Type (nodeType) node name (nodeName) node value (nodeValue)
       1 null element node label name
       Text text node 3 #text
       Comment nodes 8 #comment exegesis of the text
       Document node 9 #document null
       Attribute Attribute Name Attribute Value Node 2
<! DOCTYPE HTML> 
<HTML lang = "EN"> 
<head> 
    <Meta charset = "UTF-. 8"> 
    <title> the Title </ title> 
</ head> 
<body> 
<div class = "Box" A = "10" b = 20 id = "cont" title = " this is a div"> hello <-! this is a comment - >> </ div> 

</ body> 
<Script> var Obox = document.querySelector ( ".box") // by operation of element attributes 
    the console.log (obox.attributes); // display element built-in attribute 
    the console.log (obox.attributes [0 ] .class); 
    the console.log (obox.attributes [ . 1 ] II.A); 
    the console.log (obox.attributes [ 2 ]);
    console.log(obox.attributes[3]);
    console.log(

    typeof obox.attributes[3]);

     console.log(obox.attributes[2]);
     console.log(obox.attributes[2].nodeName);
     console.log(obox.attributes[2].nodeValue);
     console.log(obox.attributes[2].nodeType);

     console.log(obox.nodeName)
     console.log(obox.nodeValue)
     console.log(obox.nodeType)

     console.log(typeof obox.childNodes[0])
     console.log(obox.childNodes[0])
     console.log(obox.childNodes[0].nodeName)
     console.log(obox.childNodes[0] .nodeValue) 
     the console.log (obox.childNodes [ 0 ] .nodeType) 

     the console.log (obox.childNodes [ . 1 ]) 
     the console.log (obox.childNodes [ . 1 ] .nodeName) 
     the console.log (obox.childNodes [ . 1 ] .nodeValue) 
     the console.log (obox.childNodes [ . 1 ] .nodeType) 

     the console.log (Document) 
     the console.log (document.nodeName) 
     the console.log (document.nodeValue) 
     the console.log (document.nodeType) 


//      dummy array: false arrays can be used to traverse the index and length 
//      but can not use the array method 
//      all DOM selector returned array, the array is a pseudo 
//      arguments 
// 
//     True array: the length and the traverse by indexing both, may use an array of




 
</ Script> 
</ HTML>

 

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Origin www.cnblogs.com/hy96/p/11401586.html