jquery only allow input float number

Question

i\'m making some input mask that allows only float number. But current problem is I can\'t check if multiple dots entered. Can you check those dots and prevent it for me?

Answer 1

I think you guys have missed the left right arrows, delete and backspace keys.

 $('.number').keypress(function(event) {

     if(event.which == 8 || event.keyCode == 37 || event.keyCode == 39 || event.keyCode == 46) 
          return true;

     else if((event.which != 46 || $(this).val().indexOf('.') != -1) && (event.which < 48 || event.which > 57))
          event.preventDefault();

});