javascript - wrong ASCII key code for delete key -


i have html form in need allow numeric key-press. have used following code 

     $(".span8").keypress(function(e)      {          var unicode=e.charcode? e.charcode : e.keycode      //alert(unicode);      if ((unicode ==8) || (unicode==9)|| (unicode==46)){         //if key isn't backspace key (which should allow)      }      else      {          if (unicode<48||unicode>57&&unicode!=65) //if not number          return false //disable key press      }
    });

but here if testing keycode, getting value 46 delete key. 46 dot(- period) others values coming correct. not able find going wrong. please

i've found weird behaviour keypress function.

instead, try following:

jquery(function($) {   var input = $('.span8');   input.on('keydown', function() {     var key = event.keycode || event.charcode;      if(key == 8 || key == 46)         //do when del or backspace pressed   }); });

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