Question

我创建了一个新的选择器：

const getInquiryBasicInfo = createSelector(
getMedia(getInquiryRelatedEntities, ConnectionTypes.InquiryMedia.name),
getJournalist(getInquiryRelatedEntities, ConnectionTypes.InquiryReporter.name),
getReceiveDate,
getResponsDate,
getMediaOutlet,
getInitiatedCount(getInquiryDetails),
getNumberOfPublication(getInquiryDetails),
getPrecedent(getInquiryDetails),
getMinRoleTitle(getInquiryDetails),
getLanguage,
(media, journalist ,receiveDate, responsDate, mediaOutlet, initiatedCount, numberOfPublication ,isPrecedent,role, languages) => {
    return [media,journalist,receiveDate, responsDate, mediaOutlet, initiatedCount,numberOfPublication,isPrecedent ,role, languages].filter(info => {
        return info.value.length;
    });
}

）;

我收到此错误：

 error TS2554: Expected 2-9 arguments, but got 11.

如何将createSelector函数与9个以上的参数一起使用？我用角8 而我使用了：{createSelector } from '@ngrx/store';

感谢您的帮助！

Answer 1

据我了解，它应该回退到允许所有选择器的回退选择器：

export function createSelector(
  ...input: any[]
): MemoizedSelector<any, any> | MemoizedSelectorWithProps<any, any, any> {
  return createSelectorFactory(defaultMemoize)(...input);
}

话虽这么说，选择器这么大通常是一个坏习惯，您应该将它们拆分为多个较小的选择器。

createSelector函数最多可以获取9个参数

1 个答案: