I'm writing an application whereby a barcode is scanned into a text field. This barcode becomes the benchmark and a new text field is inserted underneath. Every time a new barcode is scanned, it is compared to the benchmark and a message displays whether it matched it or not, and then another text field is inserted underneath. So potentially this application can process an infinite number of barcodes.
The problem I have is that we want to make this application work without having to use the keyboard. So the app has to know when the barcode has been fully scanned without having to press the Enter key or Tab key or something like that. How do I write the javascript that can check whether a text field is finished being inputted? I assume that timers have to be used, but I can't figure it out. Also, there is no standard barcode type, so checking string length is not a solution.
