Regular expression for upper case letter only in JavaScript

Question

How can I validate a field only with upper case letters which are alphabetic. So, I want to match any word made of A-Z characters only.

Answer 1

Try this:

if (.match(/^[A-Z]*$/)) {
    // action if is all uppercase (no lower case and number)
} else {
    // else
}

here is a fiddle: http://jsfiddle.net/WWhLD/