Filtering Text in a textbox using Javascript

Question

I would like to create a textbox which accepts text in english only and integers. Basically I would like to restrict the input in a textbox to be English only.

I guess it should be something using the keydown event. But how do I restrict the input box to accept A-Z a-z and 0-9 only?

When you say English, do you mean Latin text? What about characters that have accents? — Duniyadnd
– Duniyadnd, Commented Mar 4, 2011 at 12:29

Andrew Hare · Accepted Answer · 2011-03-04 12:31:26Z

3

I would highly recommend the masked input plugin for jQuery.

answered Mar 4, 2011 at 12:31

Andrew Hare

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Ankit · Accepted Answer · 2011-03-04 12:35:05Z

0

HI, You can use regex(Regular Expresssion) to match the required criteria inyour case only english characters and digits.

Below is a sample that you can try to understand the working of regex for javascript.

var myRegExp = /[a-zA-z]+/;

var inputString = "www.dailycoding.com";

var myMatches = document.frm1.txt1.value.match(myRegExp);

for(var i=0; i
{

alert(myMatches[i]);

}

answered Mar 4, 2011 at 12:35

Ankit

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