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<!DOCTYPE html>
<html>
<head>
<style>
table, td {
  border: 1px solid black;
}
</style>
</head>
<body>
​
<p>Click the button to return the number of cells in the table's first row.</p>
​
<table id="myTable">
  <tr>
    <td>cell 1</td>
    <td>cell 2</td>
  </tr>
  <tr>
    <td>cell 3</td>
    <td>cell 4</td>
  </tr>
</table>
<br> 
​
<button onclick="myFunction()">Try it</button>
​
<p id="demo"></p>
​
<script>
function myFunction() {
  var x = document.getElementById("myTable").rows[0].cells.length;
  document.getElementById("demo").innerHTML = "Found " + x + " cells in the first tr element.";
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_table_cells by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:17:49 GMT -->
</html>
​
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