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That is the form:

<form action="" method="GET">
  <input type="text" name="para1">
  <input type="text" name="para2">
  <input type="submit" value="search">
</form>

Now when I fill out only the first field I get example/?para1=value&para2= But I just want it to be example/?para1=value because para2 don't contains value. How can I do this? Should be possible with JS or anything?

That is the form:

<form action="" method="GET">
  <input type="text" name="para1">
  <input type="text" name="para2">
  <input type="submit" value="search">
</form>

Now when I fill out only the first field I get example.com/?para1=value&para2= But I just want it to be example.com/?para1=value because para2 don't contains value. How can I do this? Should be possible with JS or anything?

  • javascript
  • forms
Share Improve this question edited Jul 12, 2023 at 12:48 gavenkoa 48.7k28 gold badges268 silver badges333 bronze badges asked May 8, 2014 at 4:27 Eddy UnruhEddy Unruh 3091 gold badge4 silver badges9 bronze badges 6
  • on submit remove the empty elements – Govind Singh Commented May 8, 2014 at 4:29
  • using js, set the disabled property (disabled form elements do not post back) e.g. '$('##').prop(disabled, true); but better to handle this in your controller/action method – user3559349 Commented May 8, 2014 at 4:32
  • I only know PHP could you give me a full code please? – Eddy Unruh Commented May 8, 2014 at 4:34
  • @EddyUnruh Don't you see my answer below? – Rashmin Javiya Commented May 8, 2014 at 4:39
  • I see but still have a problem with the ? at the end by submitting empty form. When there will be no solution then I will accept your answer – Eddy Unruh Commented May 8, 2014 at 4:56
 |  Show 1 more comment

3 Answers 3

Reset to default 20

Try this,

Include jQuery and use following snippet.

$(document).ready(function(){
    $("form").submit(function(){
        $("input").each(function(index, obj){
            if($(obj).val() == "") {
                $(obj).remove();
            }
        });
    });
});

Something like this would be the plain javascript version:

<form id="theform" action="" method="GET" onsubmit="return removeEmpties()">
    <input type="text" name="para1"/>
    <input type="text" name="para2"/>
    <input type="submit" value="search"/>
</form>
<script>
  function removeEmpties() {
        var form = document.getElementById("theform");
        var inputs = form.children;
        var remove = [];
        for(var i = 0; i < inputs.length; i++) {
            if(inputs[i].value == "") {
                remove.push(inputs[i]);
            }
        }

        if(remove.length == inputs.length - 1)
          return false;

        for(var i = 0; i < remove.length; i++) 
          form.removeChild(remove[i]);
        return true;
    }
</script>

put onclick on submit button to call submitFunc() , rather than use form action:

<input type="button" onClick="submitFunc();" value="Pass Parameters"/>

js functions:

<script language="javascript" type="text/javascript">

function submitFunc()
{
   loopRemove("text",3);
   document.testform.action = "file:///C:/Users/mwafi/Desktop/test.html";
   document.testform.submit();
}

function loopRemove(startName,count)
{
  for(var i=1;i<=count;i++)
  {
    if(document.getElementById(startName+i).value=="")
    {
        var t = document.getElementById(startName+i);
        t.parentNode.removeChild(t);
    }
  }  
}

</script>

full code with HTML form:

<html>

<title>Pass non-empty parameters</title>

<head>

<script language="javascript" type="text/javascript">

function submitFunc()
{
   loopRemove("text",3);
   document.testform.action = "http://www.google.com/";
   document.testform.submit();
}

function loopRemove(startName,count)
{
  for(var i=1;i<=count;i++)
  {
    if(document.getElementById(startName+i).value=="")
    {
        var t = document.getElementById(startName+i);
        t.parentNode.removeChild(t);
    }
  }  
}

</script>

</head>

<body onload="document.testform.reset();">

 <form name="testform">

  <h3>Pass Non-empty parameters</h3>

  Parameter 1 : <input type="text" name="text1" id="text1" /><br>
  Parameter 2 : <input type="text" name="text2" id="text2" /><br>
  Parameter 3 : <input type="text" name="text3" id="text3" /><br><br>
  <input type="button" onClick="submitFunc();" value="Pass Parameters"/>

 <form>

</body>

</html>

remember don't use form action.

source: http://www.scriptsplash.com/2009/07/passing-only-non-empty-fields-on-form.html

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