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ChildNodes Node properties in HTML

Source: Internet
Author: User
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Before looking at the HTML node this thing these dumplings has been very vague, so on the internet to find a "DOM programming art" PDF document, the program tested the next

<body>    <div id= "box" onclick= "Console.log (This)" > this                
            here <span class=" 1234 ">here</span> where        /          var div = document.getElementById (' box '). Childnodes[1].childnodes[0].nodevalue;    var div = document.getElementById (' box '). ChildNodes;    Console.log (div); </script>

Run in Chrome

Showing 6 nodes, let's see what these 6 nodes are

    1. Text:this
    2. H2#wrap.123:here<span class= "1234" >here</span> where
    3. Text:that

As you can see, ChildNodes is the first generation of child nodes of the current element, and the order is composed of the following combinations of nodes

    1. Text
    2. Text element text
    3. text element text element text

When. Box is only pure in text, or empty, there will also be a text node, that is, the first case

When an element exists in. box, a text node exists before and after the element, regardless of whether text is empty or not, which is the second case

Then you can

ChildNodes Node properties in HTML

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