How to apply CSS to table cell depending on conditions

Question

I have a table with 10 rows and data is

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" );
   }
   }  
}

I want to add red color to the cells which are above 90%. How to do it. I know in back-end we can do it but now I am using only html and CSS.

Answer 1

Slight variation in your code can make it works

 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> 

If a single column contains the entire string then do something like this

 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>