如果我有一个HTML表
<div id="myTabDiv">
<table name="mytab" id="mytab1">
<tr>
<td>col1 Val1</td>
<td>col2 Val2</td>
</tr>
<tr>
<td>col1 Val3</td>
<td>col2 Val4</td>
</tr>
</table>
</div>
我将如何遍历所有表行(假设行数可以改变每次检查)和检索值从每个单元格在每一行从JavaScript?
当前回答
我将其保留下来，以供将来参考，以便抓取特定的HTML表列并打印结果。
//select what table you want to scrape (is zero based)
//set 0 if there is only one
setTable=0;
//select what column you want to scrape (is zero based)
//in this case I would be scrapping column 2
setColumnToScrape=1;
var table = document.getElementsByTagName("tbody")[setTable];
for (var i = 0, row; row = table.rows[i]; i++) {
col = row.cells[setColumnToScrape];
document.write(col.innerHTML + "<br>");
}
其他回答
我将其保留下来，以供将来参考，以便抓取特定的HTML表列并打印结果。
//select what table you want to scrape (is zero based)
//set 0 if there is only one
setTable=0;
//select what column you want to scrape (is zero based)
//in this case I would be scrapping column 2
setColumnToScrape=1;
var table = document.getElementsByTagName("tbody")[setTable];
for (var i = 0, row; row = table.rows[i]; i++) {
col = row.cells[setColumnToScrape];
document.write(col.innerHTML + "<br>");
}
Try
for (let row of mytab1.rows)
{
for(let cell of row.cells)
{
let val = cell.innerText; // your code below
}
}
for （let row of mytab1.rows） { for（let cell of row.cells） { console.log（cell.innerText） } } <div id=“myTabDiv”> <表名=“mytab” id=“mytab1”> <tr> <td>Col1 Val1</td> <td>Col2 Val2</td> </tr> <tr> <td>Col1 Val3</td> <td>Col2 Val4</td> </tr> </table> </div>
(《让我排》[let[我]排][.. mytab1]。 { 用于(let [j,cell] [.. row.cells].entries() { 控制台(“[$ [$]，$ [j]]] = ${cell.innerText}”) 的 的 < div id = " myTabDiv > <table . the name="mytab" id="mytab1"> < tr > < td > col1 Val1 < / td > < td > col2 Val2 < / td > < / tr > < tr > < td > col1 Val3 < / td > < td > col2 Val4 < / td > < / tr > - < table > < / div >
这个解决方案对我来说非常有效
var table = document.getElementById("myTable").rows;
var y;
for(i = 0; i < # of rows; i++)
{ for(j = 0; j < # of columns; j++)
{
y = table[i].cells;
//do something with cells in a row
y[j].innerHTML = "";
}
}
使用一个for循环:
var table = document.getElementById('tableID');
var count = table.rows.length;
for(var i=0; i<count; i++) {
console.log(table.rows[i]);
}
纯Javascript
功能numberofRow () { var =文档.getElementById(“mytab1”).修道院; getElementById (mytab1”)的文件。innerHTML = x; 的 numberofRow (); < div id = " myTabDiv > <table . the name="mytab" id="mytab1"> < tr > < td > col1 Val1 < / td > < td > col2 Val2 < / td > < / tr > < tr > < td > col1 Val3 < / td > < td > col2 Val4 < / td > < / tr > - < table > < / div >
