Example3 : using getElementById in a form

The code

function processFormData()
{

  var inputs = document.getElementsByTagName('input');
 
  var message =
    "The form has the following input elements with "+
    " the 'type' attribute = 'text': \n\n";

  for (var i=0; i < inputs.length; i++) {
  if (inputs[i].getAttribute('type') == 'text') {
    message += inputs[i].tagName +
        " element with the 'name' attribute = '"
        + inputs[i].getAttribute('name') + "'\n";
  }
  }

  alert(message);
 
}

Download the code here: getelementbyid-form-sample.zip

Back to article: using getElementById

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