Append URL with form input
Question
This is my first attempt to write anything in javascript, although this does exactly as intended, I am sure it can be done simpler. Not that this script is all that useful, just an exercise in learning something new. I was also trying not to use the evil document write.
So what is the more elegant way of doing this?
<html>
<body>
<input name="abc" type="text" id="foo">
<button onclick="AddInputValue()">Submit</button>
<p id="displayURL"></p>
<script>
function AddInputValue(){
var domain = "http://site.com?abc="
var qstring = document.getElementById("foo").value;
document.getElementById("displayURL").innerHTML=domain + qstring;
}
</script>
</body>
</html>
2 answers
solution1
0 ACCPTED 2013-03-24 09:42:53
If you use jQuery :
<html>
<!-- Include jQuery! -->
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<body>
<form id="form1">
<input name="abc" type="text" id="foo">
<button type="submit">Submit</button>
</form>
<p id="displayURL"></p>
<script>
$(document).ready(function () {
var form = document.getElementById("form1");
$(form).submit(function () {
var domain = "http://site.com/?";
var data = $(this).serialize();
document.getElementById("displayURL").innerHTML = domain + data;
return false;
});
});
</script>
</body>
</html>
You can even add more form elements and the name of the element will match the query string. http://jsfiddle.net/3muu6/
solution2
0 2013-03-24 19:25:58
Just posting the example in http://jsfiddle.net/3muu6/ .
Increased the number of inputs. This is basically what Google Analytics URL Builder does, and was the inspiration for this exercise.
<html>
<head>
<!-- Include jQuery! -->
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js">
</script>
</head>
<body>
<form id="form1">
<input name="abc" type="text" id="foo" /><br />
<input name="def" type="text" id="bar" /><br />
<input name="ghi" type="text" id="tar" /><br />
<input name="jkl" type="text" id="boo" /><br />
<button type="submit">Submit</button>
</form>
<p id="displayURL"></p>
<script>
$(document).ready(function () {
var form = document.getElementById("form1");
$(form).submit(function () {
var domain = "http://example.com/?";
var data = $(this).serialize();
document.getElementById("displayURL").innerHTML = domain + data;
return false;
});
});
</script>
</body></html>
Now how to omit a query-string pair when the user leaves an input value blank? Hmm.
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