Allow Only Decimal Numbers Using Jquery in input field

Allow Only Decimal Numbers Using Jquery in input field

function allowOnlyDecimal(event) {
      if (event.shiftKey == true) {
          event.preventDefault();
      }
      if ((event.keyCode >= 48 && event.keyCode <= 57) || (event.keyCode >= 96 && event.keyCode <= 105) || event.keyCode == 8 || event.keyCode == 9 || event.keyCode == 37 || event.keyCode == 39 || event.keyCode == 46 || event.keyCode == 190 || event.keyCode == 110) {

      } else {
          event.preventDefault();
      }

      if ($(this).val().indexOf('.') !== -1 && (event.keyCode == 190 || event.keyCode == 110 ))
          event.preventDefault();
  }