Good afternoon, below is the code in it I am getting fields from my table. The 0 field contains a checkbox, how can I find out if it is checked or not(true or false)? You need to change this line: console.log (td.item (f));
var table = document.getElementsByClassName("table-sm");
for (var i = 0; i < table.length; i++) {
var tr = table.item(i).getElementsByTagName("tr");
for (var j = 0; j < tr.length; j++) {
var trr = tr.item(j);
var td = tr.item(j).getElementsByTagName("td");
for (var f = 0; f < td.length; f++) {
if (f === 0) console.log(td.item(f));
console.log(td.item(f).innerText);
}
}
}
Firstly, please learn about JavaScript Table API is much better than just making complex for-loops.
Next time please add full code (HTML/JavaScript) so people can help you.
Now let's fix your code.
<table class="table-sm" id="myTable">
<thead>
<tr>
<th>Checkbox</th>
<th>ID</th>
<th>Name</th>
</tr>
</thead>
<tbody>
<tr>
<td><input type="checkbox" name="selected[]" checked /></td>
<td>1</td>
<td>Mohammed</td>
</tr>
<tr>
<td><input type="checkbox" name="selected[]" /></td>
<td>2</td>
<td>Ali</td>
</tr>
</tbody>
</table>
and we want to get the first item of each rows, and check whether the checkbox is checked or not.
var table = document.getElementById("myTable");
I use Array.from() to convert HTMLCollection to normal array, so I can use Array APIs (Like .forEach).
var rows = Array.from(table.rows);
rows.map((row) => {
var cells = Array.from(row.cells);
// TODO add logic here.
});
firstChild of first cell.rows.map((row) => {
var cells = Array.from(row.cells);
if (Array.isArray(cells) && cells.length > 0) {
var firstChild = cells[0].firstChild;
console.log(firstChild.checked);
}
});