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Create new in JS

i want to create new table row as text <tr> after every third table data<td> from user input.

It have to be like this:

<table border="3" align="center" style="width: 100%;">
<tr>
<td><a href="link"><img src="link"></td>
<td><a href="lin"><img src="link"></td>
<td><a href="link"><img src="link"></td>
</tr>
<tr>
<td><a href="link"><img src="link"></td>
<td><a href="lin"><img src="link"></td>
<td><a href="link"><img src="link"></td>
</tr>
</table>

My code:

<script type="text/javascript">
      let x = 0;
      const data = Array();

        document.getElementById('btn').addEventListener("click", fun);
          function fun() {
            var val = document.getElementById('imagename').value;
              source = val;
              img = document.createElement('img');
                img.src = source;
                document.body.appendChild(img);
                // move child to up
                var before = document.getElementById('before');
                before.insertBefore(img, before.children[0]);

          /*var html = document.getElementById('before').innerHTML;
          document.getElementById('code').innerHTML = '<img src=' + src + '>';*/


          document.getElementById('code').innerText = '<img src="' + source + '">';
          data[x] = document.getElementById('imagename').value;
          x++;

          }

          document.getElementById('pasteBtn').addEventListener("click", makeCode);
            function makeCode(){
              let resultData = "<tr>";
                for (let i = 0; i < data.length; i++){
                  resultData += "<td>" + '<a href="' + data[i] + '">' + '<img src="' + data[i] + '"></td>\n';
                  if(i % 3 == 0){
                    resultdata += '</tr><tr>';
                  }
              }
              cssText = 'tr {width: 100%; display: flex;} td {width: 100%;}';
              tableText = '\n<table border="3" align="center" style="width: 100%;">\n';
              document.getElementById("paste").innerText = "<style>" + cssText + "</style>" + tableText + resultData;
            }
      </script>

I was trying with modulo but nothing happened. It have to be done in JS, not JQuery.

Via Active questions tagged javascript - Stack Overflow https://ift.tt/htNsJ70
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