Is there a way to allow column 3 in my dynamically populated table to have a flexible width while enforcing that column 4 matches the width of column 3?
Is there a way to allow column 3 in my dynamically populated table to have a flexible width while enforcing that column 4 matches the width of column 3?
To successfully tackle this issue, a JavaScript Event Listener must be implemented to trigger the script upon the page being fully loaded:
document.addEventListener("DOMContentLoaded", function(){ ... });The width of an element can be obtained using the following code:
document.querySelector('.row-3').offsetWidth;Subsequently, you can assign this width to another element using: ...style.width = ...
An important point to note is that the offsetWidth property includes both padding and border values of an element. To rectify this, the <tr> in the CSS needs to have: box-sizing: border-box;. By making this adjustment, the width will now encompass paddings and borders as well. Additionally, due to rounding, there might be a slight variation of up to 0.5px when retrieving the rounded value through offsetWith.
document.addEventListener("DOMContentLoaded", function(){
let rowWidth = document.querySelector('.row-3').offsetWidth;
document.querySelector('.row-4').style.width = rowWidth + "px";
});td {
border: 1px solid black;
padding: 5px;
box-sizing: border-box;
}<table>
<tr>
<td>A1</td>
<td>A1</td>
<td class="row-3">A3 extra wide</td>
<td class="row-4">A4</td>
<td>A5</td>
</tr>
<tr>
<td>B1</td>
<td>B1</td>
<td>B3</td>
<td>B4</td>
<td>B5</td>
</tr>
<tr>
<td>C1</td>
<td>C1</td>
<td>C3</td>
<td>C4</td>
<td>C5</td>
</tr>
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