Javascript DOM HTML Form length Property get element count

Introduction

Return the number of elements in a form: 

var x = document.getElementById("myForm").length;

Click button to return the number of elements in myForm.

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<!DOCTYPE html>
<html>
<body>

<form id="myForm" action="/action_page.php">
  First name: <input type="text" name="fname" value="CSS"><br>
  Last name: <input type="text" name="lname" value="HTML"><br>
  <input type="submit" value="Submit">
</form>//from   w ww  .  ja  v a 2 s. com
<button onclick="myFunction()">Test</button>

<p id="demo"></p>

<script>
function myFunction() {
  var x = document.getElementById("myForm").length;
  document.getElementById("demo").innerHTML = x;
}
</script>

</body>
</html>

The length property returns the number of elements in a form.

The length property returns a number representing the number of elements in the form.




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