Re: What's the easiest way to tell if a character is a letter or not?

[Harbs]

What about this:

if(letter.toLowerCase() != letter.toUpperCase()){
        // do your stuff...
}

I have no idea how performance compares to figuring it out yourself though…

On Apr 22, 2013, at 4:05 AM, Justin Mclean wrote:

> Hi,
> 
> Anyone know how to work out if a character, including unicode characters, is 
> a letter or not?
> 
> This is not the right way of doing it:
> 
>            if ("a" <= letter && letter <= "z" ||
>                "A" <= letter && letter <= "Z")
> 
> From the DateFormatter class for the curious.
> 
> Thanks,
> Justin
> 
> 
>