function inputNumber() {
    return {
      require: 'ngModel',
      link: function(scope, element, attrs, ctrl) {
        ctrl.$parsers.unshift(function(viewValue) {
          if (FLOAT_REGEXP.test(viewValue)) {
            ctrl.$setValidity('float', true);
            if (typeof viewValue === 'number') {
              return viewValue;
            } else {
              console.log(parseFloat(viewValue.replace(',', '.')));
              console.log(parseFloat(viewValue.replace(',', '.')) > 100000);
              return parseFloat(viewValue.replace(',', '.'));
            }
          } else {
            ctrl.$setValidity('float', false);
            return undefined;
          }
        });

      }
    };
  }


Console output:

false
10
false
10.3
false
10.32
false
10321
false
10.3211
false
10.32111
false
10.321111
false
10.32111
false
10.3211
false
10321
false