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d-machine
06-13-2008, 12:29 PM
I want to check some form input, that it should be only one word without spaces and that it will be at least 6 characters.

I succeeded checking that length of the word, but didn't know what to do about the spaces.

my function:



// If it is at least 6 characters it attaches class="welldone" to the containing fieldset.

function checkUsernameForLength(whatYouTyped) {
var fieldset = whatYouTyped.parentNode;
var txt = whatYouTyped.value;
if (txt.length > 5) {
fieldset.className = "welldone";
}
else {
fieldset.className = "";
}
}

Nile
06-13-2008, 09:08 PM
Just replace the spaces using this method: http://www.tizag.com/javascriptT/javascript-string-replace.php

d-machine
06-14-2008, 05:06 AM
Just replace the spaces using this method: http://www.tizag.com/javascriptT/javascript-string-replace.php

hi thanks but i don't want to replace it, i want to write some condition which will check it

rangana
06-14-2008, 05:59 AM
Use indexOf() (http://www.w3schools.com/jsref/jsref_indexOf.asp).


if(!(txt.indexOf('')==-1))
{
alert('spaces is present');
}


Hope it helps.

coothead
06-14-2008, 06:36 AM
Hi there d-machine,

this will check for 6 or more letters...


<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">

<script type="text/javascript">
window.onload=function() {
document.forms[0][1].onclick=function() {
if(document.forms[0][0].value.match(/^[a-zA-Z]{6,}$/)){
alert('the input matches the requirement');
}
else {
alert('the input does not match the requirement');
}
}
}
</script>

</head>
<body>

<form action="#">
<div>
<input type="text">
<input type="button" value="check">
</div>
</form>

</body>
</html>

coothead

d-machine
06-14-2008, 07:32 PM
Thank you both !! :)
You are awesome I really appreciate your help.

coothead
06-14-2008, 07:57 PM
No problem, you're welcome. ;)