<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js">
</script>
<style>
table, th, td {
border: 1px solid black;
border-collapse: collapse;
}
</style>
<script>
$(document).ready(function(){
$("button").click(function(){
var count = $('#myTable tr').length;
alert("Total Number of row is :"+ count);
});
});
</script>
</head>
<body>
<p>How to count number of row in a table using jQuery</p>
<button type="button">Show Count</button><br><br>
<table style="width:100%" id="myTable">
<tr>
<th>Firstname</th>
<th>Lastname</th>
<th>Age</th>
</tr>
<tr>
<td>Jill</td>
<td>Smith</td>
<td>50</td>
</tr>
<tr>
<td>Eve</td>
<td>Jackson</td>
<td>94</td>
</tr>
<tr>
<td>John</td>
<td>Doe</td>
<td>80</td>
</tr>
</table>
</body>
</html>