小编Vip*_*ngh的帖子

如何修复：ngRx 中的“类型错误：实体不可迭代”：如果有人明白这一点，请告诉我。

//用户.action

        import { Course } from '../model/user';
        import { createAction, props } from '@ngrx/store';
        import { Update } from '@ngrx/entity';

        export const loadCourses = createAction(
          '[Courses List] Load Courses via Service'
        );

        export const coursesLoaded = createAction(
          '[Courses Effect] Courses Loaded Successfully',
          props<{ courses: Course[] }>()
        );

        export const createCourse = createAction(
          '[Create Course Component] Create Course',
          props<{ course: Course }>()
        );

        export const deleteCourse = createAction(
          '[Courses List Operations] Delete Course',
          props<{ courseId: string }>()
        );

        export …