Example introduction to how to obtain the document node object_javascript skills

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<script> <br><br>/* <br>How to obtain the document node object: <br><br>*/ <br>//First method, Get by id<br>function documentDemo(){ <br>var tableNode = document.getElementById("tab_id"); <br>tableNode.style.border = "5px solid #00ff00"; <br>} <br>/ /Second, through the name attribute <br>function documentDemo2(){ <br>var inputNode = document.getElementsByName("txt"); <br>alert(inputNode.length); <br>alert(inputNode[0] .value); <br><br>} <br>//The third method, through the tag name <br>function documentDemo3(){ <br>var tdNode = document.getElementsByTagName("td"); <br>alert (tdNode.length); <br>for(var x = 0 ; x < tdNode.length;x ){ <BR>alert(tdNode[x].innerText); <BR>} <BR>} <BR> </script>

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