import { Pipe, PipeTransform } from '@angular/core';@Pipe({ name: 'globalFilter'})export class GlobalFilterPipe implements PipeTransform { transform(items: any, filter: any, defaultFilter: boolean): any { if (!filter){ return items; } if (!Array.isArray(items)){ return items; } if (filter && Array.isArray(items)) { let filterKeys = Object.keys(filter); if (defaultFilter) { return items.filter(item =>  filterKeys.reduce((x, keyName) =>  (x && new RegExp(filter[keyName], 'gmi').test(item[keyName])) || filter[keyName] == "", true)); } else { return items.filter(item => {  return filterKeys.some((keyName) => {  return new RegExp(filter[keyName], 'gmi').test(item[keyName]) || filter[keyName] == "";  }); }); } } }}

import { GlobalFilterPipe } from './shared/filter.pipe';registerLocaleData(zh);@NgModule({ declarations: [ GlobalFilterPipe, ]

<nz-input-group nzSearch nzSize="large" [nzSuffix]="suffixButton"> <input type="text" [(ngModel)]="searchText" nz-input placeholder="input search text"></nz-input-group><ng-template #suffixButton> <button nz-button nzType="primary" nzSize="large" nzSearch>Search</button></ng-template><br><br><nz-card *ngFor="let topData of topCategoriesData" nzTitle="{{topData.categoryName}}"> <div nz-card-grid [ngStyle]="gridStyle" *ngFor="let secondData of topData.subCategories | globalFilter: {categoryName: searchText,categoryCode: searchText}" >  <nz-collapse> <nz-collapse-panel [nzHeader]="secondData.categoryName+'('+secondData.categoryCode+')'" [nzActive]="false" [nzDisabled]="false"> <nz-select style="width: 100%;" (nzOpenChange)="loadMore(secondData.categoryId)" nzPlaceHolder="請(qǐng)選擇..." nzAllowClear>  <nz-option *ngFor="let thirdData of thirdCategoriesData | globalFilter: {categoryName: searchText,categoryCode: searchText}" [nzValue]="thirdData.categoryId" [nzLabel]="thirdData.categoryName+'('+thirdData.categoryCode+')'"></nz-option>  <nz-option *ngIf="isLoading" nzDisabled nzCustomContent>  <i nz-icon type="loading" class="loading-icon"></i> Loading Data...  </nz-option> </nz-select> </nz-collapse-panel> </nz-collapse> <!-- <a>{{secondData.categoryName}}</a><b>({{secondData.categoryCode}})</b> --> </div> <ng-template #extraTemplate> <a>二級(jí)分類數(shù)量：{{data.subCategories.length}}</a> </ng-template></nz-card>

import { Component, OnInit } from '@angular/core';import { CategoryService } from '../category.service';@Component({ selector: 'app-category', templateUrl: '../pages/category.component.html', styleUrls: ['../pages/category.component.css']})export class CategoryComponent implements OnInit { //todo 搜索無(wú)法由下至上匹配1,2級(jí)數(shù)據(jù) public searchText:string; topCategoriesData=[];  thirdCategoriesData=[]; isLoading = false; constructor(private categoryService:CategoryService) { } loadMore(id): void { this.isLoading = true; this.categoryService.getThirdById(id).subscribe((data:any) => { this.isLoading = false; this.thirdCategoriesData=data; }); } ngOnInit():void { this.categoryService.getCategoriesTop().subscribe( (data:any)=>{ this.topCategoriesData = data; }); }}