javascript - HTC One X KeyCode always returns zero -

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i have need validate text entered textbox using javascript before it's sent off third party acted upon.

to this, i'm using browserevent.keycode parameter keycode sent browser on key-up event, validating code whether it's allowed in textbox or not.

this works fine across devices i've tested, apart chrome on htc 1 x.

i've found annoying differences between various android , ios devices, return can work with. htc 1 x, however, returns 0 every key press apart backspace , enter keys, return 8 , 13 respectively.

i've tried event.keycode, event.charcode , event.which browserevent.keycode, browserevent.charcodeand browserevent.which codes, , returned 0.

basically, i'm stuck. have idea

  1. why keycode returned 0 on device, ,
  2. how can detect keycode?

although doesn't answer immediate question, used of ideas lukas knuth gave me solve it.

the process keycode of 0 caught , handed function runs contents of input box through regex validation. if validation fails, last character removed input box.

i apologise if comes question seeking solution htc 1 x passing through 0 keycode, after couple of days of research , experimentation, couldn't find solution, worked around problem instead.


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