Source
set ngForOf(dynamic value) { this._ngForOf = value; if (_differ == null && value != null) { try { this._differ = this ._iterableDiffers .find(value) .create(this._cdr, this._ngForTrackBy); } catch (_) { assert(() { throw new BaseException('Cannot find a differ supporting object' ' \'${ value}\' of type' ' \'${ value?.runtimeType }\'' '. NgFor only supports binding to Iterables ' 'such as Arrays.'); }); rethrow; } } }