根据用户的选择，我必须在两个表之间切换，我可以使用表对象模型进行切换，但当我删除一个表并加载另一个表时，它会出现问题，但下次当我切换回第一个表时，它将无法获取表id，也无法工作。
像这样使用DOM时
var tbl1 = document.createElement("table");
tbl1.setAttribute('id','shorttable');
对于delete，我使用下面的java脚本
var b = document.getElementById('shorttable');
document.removeChild(b);
但是给我一个例外
未捕获错误：未找到\u错误：DOM异常
使用DOM有什么办法吗？
@lonesomeday感谢您的回复，但当我从其他函数调用它时它不起作用？
我所要做的就是这样。
<html>
<head>
<title>test dom</title>
<script>
function trackmode()
{
// i have to delete other table from this function where it is not working
var b = document.getElementById('shorttable');
alert(b);
b.parentNode.removeChild(b);
var body = document.getElementsByTagName("body")[0];
// creates a <table> element and a <tbody> element
var tbl = document.createElement("table");
tbl.setAttribute('id','tracktable');
var tblBody = document.createElement("tbody");
// creating all cells
for (var j = 0; j < 2; j++) {
// creates a table row
var row = document.createElement("tr");
for (var i = 0; i < 2; i++) {
// Create a <td> element and a text node, make the text
// node the contents of the <td>, and put the <td> at
// the end of the table row
var cell = document.createElement("td");
var cellText = document.createTextNode("cell is row "+j+", column "+i);
cell.appendChild(cellText);
row.appendChild(cell);
}
// add the row to the end of the table body
tblBody.appendChild(row);
}
// put the <tbody> in the <table>
tbl.appendChild(tblBody);
// appends <table> into <body>
body.appendChild(tbl);
// sets the border attribute of tbl to 2;
tbl.setAttribute("border", "2");
}
function shortenmode()
{
var b = document.getElementById('tracktable');
b.parentNode.removeChild(b);
var body1 = document.getElementsByTagName("body")[0];
// creates a <table> element and a <tbody> element
var tbl1 = document.createElement("table");
tbl1.setAttribute('id','shorttable');
var tblBody1 = document.createElement("tbody");
// creating all cells
for (var j = 0; j < 2; j++) {
// creates a table row
var row = document.createElement("tr");
for (var i = 0; i < 2; i++) {
// Create a <td> element and a text node, make the text
// node the contents of the <td>, and put the <td> at
// the end of the table row
var cell = document.createElement("td");
var cellText = document.createTextNode("cell is row "+j+", column "+i);
cell.appendChild(cellText);
row.appendChild(cell);
}
// add the row to the end of the table body
tblBody1.appendChild(row);
}
// put the <tbody> in the <table>
tbl1.appendChild(tblBody1);
// appends <table> into <body>
body1.appendChild(tbl1);
// sets the border attribute of tbl to 2;
tbl1.setAttribute("border", "2");
//here it will work
//var b = document.getElementById('shorttable');
//alert(b);
//b.parentNode.removeChild(b);
//myP.removeChild(myTextNode);
}
</script>
</head>
<body >
<button type="button" name="website" onclick=trackmode() > track</button>
<button type="button" name="website1" onclick=shortenmode() > short </button>
</body>
</html>
最佳答案
要删除元素，需要从其父元素中删除它，而不是从文档中删除它。所以：
b.parentNode.removeChild(b);