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I have the following code:

    <head>
        <script language="javascript">
            function subimiti(event){
                alert("Tipo do submit: "+event);
            }
        </script>
    </head>
    <body>
        <form id="f1" name="form1" onsubmit="subimiti(event)" action=";>
            <input type="text" id="meuId" value="Teste"/>
            <input id="butao" type="submit" value="Subimeta u fórmi trem bão!!"/>
        </form>

In my JavaScript function I want to detect the event that causes the form submit. If it was by an enter key in my text field, or if it was by clicking on the button.

I have the following code:

    <head>
        <script language="javascript">
            function subimiti(event){
                alert("Tipo do submit: "+event);
            }
        </script>
    </head>
    <body>
        <form id="f1" name="form1" onsubmit="subimiti(event)" action="http://www.google.">
            <input type="text" id="meuId" value="Teste"/>
            <input id="butao" type="submit" value="Subimeta u fórmi trem bão!!"/>
        </form>

In my JavaScript function I want to detect the event that causes the form submit. If it was by an enter key in my text field, or if it was by clicking on the button.

Share Improve this question edited Sep 25, 2021 at 17:38 John Kary 7,2721 gold badge27 silver badges24 bronze badges asked Jun 26, 2013 at 20:04 Mateus ViccariMateus Viccari 7,70917 gold badges66 silver badges102 bronze badges 1
  • possible duplicate of Determine which element submitted a form from within onsubmit – dsgriffin Commented Jun 26, 2013 at 20:07
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1 Answer 1

Reset to default 5

Since the keypress event fires the click event when there's a submit button, the only workaround that I can think of is having a type=button instead.

Pure javascript (Fiddle):

<form id="f1" name="form1" action="" onsubmit="subimiti(this)" method="POST">
  <input type="text" id="meuId" value="Test" onkeypress="setEvent(event)"/>
  <input id="butao" type="button" onclick="setEvent(event)" value="Subimeta u formi trem bao!!"/>
</form>

function subimiti(form)
{
  event.preventDefault();
  alert(form.getAttribute('event'));   

}

function setEvent(event)
{
 if(event.type == 'click')
 {
   document.form1.setAttribute('event','click');
   subimiti(document.form1);
 }
 else if (event.keyCode == 13)
 {
   document.form1.setAttribute('event','keypress');
 }
}

Using jQuery (cleaner/easier code in my opinion):

$(function(){
  $('form').submit(function(){
    alert($(this).attr('event'));
  });

  $("input#butao").on('click', function(e) {
    $("form").attr("event", "click").submit();
  });      

  $("input").on('keypress', function(e) {
    if (e.which == 13)
    {
      $("form").attr("event", "keypress");
    }
  });            
}); 

There's a click listener for butao only and enter listener for any input.

<form id="f1" name="form1" action="">
  <input type="text" id="meuId" value="Teste"/>
  <input id="butao" type="button" value="Subimeta u formi trem bao!!"/>
</form>

Fiddle (added preventDefault to fiddle so you could see the results without actually submitting)

本文标签: javascriptDetect type of submitif it was by enter key or button clickStack Overflow