javascript subtract(-) keycode

javascript keycode subtraction
kmunky picture kmunky · Dec 14, 2009 · Viewed 46.3k times · Source

ok, i need my code to check if minus/subtract/- was pressed, if it was pressed i want an alert box to pop. i tried with both 109 and 189 key codes but i still don't get the desired result. although i press "-" i don't get that alert box

Answer

Dave Ward picture Dave Ward · Dec 14, 2009

The JavaScript charCodes, which you test for during a keypress event, are ASCII. 109 is the correct keyCode, if used in a keydown or keyup event.

"-" has a charCode of 45.

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