javascript - jQuery get numeric input from all browsers -


i want user press on number key while focus on input item, , browser should go foo.com/[number]

this code using:

function isnumberkey(evt){     var charcode = (evt.which) ? evt.which : event.keycode;     if (charcode != 46 && charcode > 31      && (charcode < 48 || charcode > 57))         return false;     return true; }  $(document).ready(function(){      $('.my_input').keypress(function(event){         if(isnumberkey(event)){             window.location='foo.com/'+(event.keycode-48);         }    });  }); 

it works on google chrome, firefox users getting errors. want implement mobile version user can input number, , press "enter" key of mobile device.

how can ensure work on browsers support javascript?

thanks help!

here's code corrected don't think you're after. note charcode returned numpad different of number-key row.

function isnumberkey(evt){      var charcode = (evt.which) ? evt.which : evt.keycode;      if ((charcode >= 48 && charcode <= 57) || (charcode >= 96 && charcode <= 105)) { //0-9 (inc numpad)          return true;      }      return false;  }    $(document).ready(function(){      $("input[type='number']").on("keyup",function(evt){        if(isnumberkey(evt)){              var charcode = (evt.which) ? evt.which : evt.keycode;              //window.location='foo.com/'+(charcode-48);              alert('foo.com/'+(charcode-48));//minus 48 wont work if numpad          }     });    });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <input type="number" value="" />

it may better value of input instead...

$(document).ready(function(){      $("input[type='number']").on("keyup",function(){          var val = parseint(this.value);          this.value="";          if(val>0){              alert('foo.com/'+val);          }     });  });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <input type="number" value="" />


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