Compare an event.key to a letter for comparison purposes

[Dolphin]

I have a list and want to strike a letter on the keyboard and have first item in the list starting with that letter be the new list position. I have the event.key and the string in each of the list items from which I can determine the first letter. What I cannot work out is how to do a comparison (in c++ it would be a simple cast of the char -> aski code so comparing 2 numbers). In QML I am comparing a char and a number which obviously does not work.

Code snippet, this code works fine for 'H' but I need it to get generic for all event.keys

@
var txt = ""
var ch = ""
for( var i = currentIndex + 1; i < QMLManager.getListLength(); i++ )
{
txt = QMLManager.getItemByIndex(i).displayText
ch = txt.charAt(0)
if(ch.toUpperCase() === "H")
{
currentIndex = i
break
}
}
@