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Only allow numbers, dashes (-) and comma's (,) in text field

Posted on 2013-01-04

JavaScript

1 solution

Medium Priority

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Last Modified: 2013-01-04

Hi,

I would like to only allow numbers, dashes (-) and comma's (,) to be entered into a text field.

How should i do this? Without the use of jQuery please.

Thanks!

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Question by:peps03

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3 Comments

LVL 33

Expert Comment

by:Big Monty

ID: 387438422013-01-04

try this:

var someName = document.getElementById("sometextField");
if(/^[-,a-z0-9-]+$/i.test(someName.value))
{
alert('Name can only be alpha numeric with hypen or comma.');
return;
}

LVL 82

Accepted Solution

by:leakim971

leakim971 earned 2000 total points

ID: 387438672013-01-04

Test page : http://jsfiddle.net/Cnc6V/

function f1(evt)  {
    var e = event || evt;
    var c = e.which || e.keyCode;
    return !( (c<48||c>57) && c!=45 && c!=44 );
}¿

Open in new window

with :

<input type="text" onkeypress="return f1(event)" />¿

Open in new window

Author Closing Comment

by:peps03

ID: 387438892013-01-04

Thanks!!!

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