如何根據條件將CSS應用於表格單元格

Question

我有一個10行的表，數據是

ABC XYZ 30% (ABC)
ABC MNO 91% (XYZ)



var table = document.getElementById("table2");
for (var i = 0, row; row = table.rows[i]; i++) {
   for (var j = 0, col; col = row.cells[j]; j++) {
   var data = col.innerText;
   var data1 = data.split(" ");
   if(data1[0] == "91%"){
        row.cells[j].css( "color", "red" );
   }
   }  
}

我想為90％以上的單元格添加紅色。 怎么做。 我知道在后端我們可以做到，但是現在我只使用html和CSS。

Answer 1

代碼稍有變化即可使其正常工作

 var table = document.getElementById("table2"); for (var i = 0, row; row = table.rows[i]; i++) { for (var j = 0, col; col = row.cells[j]; j++) { var data = col.innerText; // replace % symbol, parse and compare with number if (+data.replace('%', '') > 90) { // update style property of cell col.style.color = "red"; } } } 

 <table id="table2"> <tr> <td>ABC</td> <td>XYZ</td> <td>30%</td> <td>(ABC)</td> </tr> <tr> <td>ABC</td> <td>MNO</td> <td>91%</td> <td>(XYZ)</td> </tr> </table> 

如果單個列包含整個字符串，請執行以下操作

 var table = document.getElementById("table2"); for (var i = 0, row; row = table.rows[i]; i++) { for (var j = 0, col; col = row.cells[j]; j++) { // get the percentage value from string var data = col.innerText.match(/(\\d+(?:\\.\\d+)?)%/); // check match found or not then parse and compare with number if (data && +data[1] > 90) { // update style property of cell col.style.color = "red"; } } } 

 <table id="table2"> <tr> <td>ABC XYZ 30% (ABC)</td> </tr> <tr> <td>ABC MNO 91% (XYZ)</td> </tr> </table>