Subj : Re: console.getkeys
To   : Mortifis
From : Digital Man
Date : Wed Jul 24 2019 03:36 pm

 Re: Re: console.getkeys
 By: Mortifis to echicken on Wed Jul 24 2019 06:52 pm

>  >   Re: console.getkeys
>  >   By: Mortifis to All on Wed Jul 24 2019 16:39:55
>
>  >  Mo> I have if(js.global.console) lookup = console.getkeys("HSOQ",
>  >  Mo> lastuser); where lastuser=system.lastuser... if entering a number it
>  >  Mo> throws a !Javascript TypeError:
>
>
> perhaps I should run a condition check similar to if(lookup == [whatever ||
> ... keys are in getkeys)) before I lookup.toUpperCase ... though before it
> was lookup = readln() and there was no error

readln() returns either a string or undefined. undefined.toUpperCase() would also throw a JS exception.

You might want to use typeof in this case to be sure your variable is a string before you start treating it like a string.

                                           digital man

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