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<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title>首頁</title>
    </head>
    <body>
        <h1>Hello!World!</h1>
        <a href="https://openhome.cc/zh-tw/">學習筆記</a>
        <div id="console"></div>
        
<script type="text/javascript">
    let typeNames = new Map([
        [Node.ELEMENT_NODE, 'ELEMENT_NODE'],
        [Node.ATTRIBUTE_NODE, 'ATTRIBUTE_NODE'],
        [Node.TEXT_NODE, 'TEXT_NODE'],
        [Node.CDATA_SECTION_NODE, 'CDATA_SECTION_NODE'],
        [Node.ENTITY_REFERENCE_NODE, 'ENTITY_REFERENCE_NODE'],
        [Node.ENTITY_NODE, 'ENTITY_NODE'],
        [Node.PROCESSING_INSTRUCTION_NODE, 'PROCESSING_INSTRUCTION_NODE'],
        [Node.COMMENT_NODE, 'COMMENT_NODE'],
        [Node.DOCUMENT_NODE, 'DOCUMENT_NODE'],
        [Node.DOCUMENT_TYPE_NODE, 'DOCUMENT_TYPE_NODE'],
        [Node.DOCUMENT_FRAGMENT_NODE, 'DOCUMENT_FRAGMENT_NODE'],
        [Node.NOTATION_NODE, 'NOTATION_NODE']
    ]);
    
    function subNodesOf(parent, indent = '　　') {
        let nodes = parent.childNodes;
        let nodeDesc = Array.from(nodes).reduce((nodeDesc, node) => {
            let nodeName = node.nodeName;
            let typeName = typeNames.get(node.nodeType);
            return nodeDesc + `${indent} ${nodeName} ${typeName} <br>` + 
                   subNodesOf(node, `　　${indent}`);
        }, '');
        
        return nodeDesc;
    }
    
    let nodeName = document.nodeName;
    let typeName = typeNames.get(document.nodeType);
    document.getElementById('console').innerHTML = 
        `${nodeName} ${typeName} <br>` + subNodesOf(document);
​
</script>
        
    </body>
</html>
​
 
​
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JustinSDKpro
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