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HTML DOM NodeList item() 方法
tryjsref_nodelist_item2
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<!DOCTYPE html> <html> <body> <h1>The NodeList Object</h1> <h2>The item() Method</h2> <p>Using list.item(0) is the same as using list[0].</p> <p>The node name of the first child node is:</p> <p id="demo"></p> <script> const list = document.body.childNodes; let name = list[0].nodeName; document.getElementById("demo").innerHTML = name; </script> </body> </html>