Tip Calculator App

Maybe instead of trying to prevent certain inputs in the fields i should instead sanitize and create an input string to work with....i don't know ....

Even with number input fields, letters, operators, etc.. can still be typed in by default which makes no sense to me ... anyway i had to prevent unwanted inputs as best i could...which then i had to rewrite because Firefox number input fields logged `` when dots were input as value. Advice i found online said to use text input instead, so i changed them, which then started causing issues in google chrome like pressing AltGr + number key symbols the number key setting isDigit to true letting the input trough - regardless of what key it was - with the symbols creating issues. I don't know...did what i could.