按angular中的特定类型过滤数组列表

let array = [
  { name: 'John', age: 25 },
  { name: 'Jane', age: 30 },
  { name: 'Bob', age: 35 }
];

let filteredArray = array.filter(item => typeof item === 'object');
console.log(filteredArray);

import { Pipe, PipeTransform } from '@angular/core';

@Pipe({
  name: 'typeFilter'
})
export class TypeFilterPipe implements PipeTransform {
  transform(array: any[], type: string): any[] {
    return array.filter(item => typeof item === type);
  }
}

<ul>
  <li *ngFor="let item of array | typeFilter:'object'">{{ item }}</li>
</ul>

import { of } from 'rxjs';
import { filter } from 'rxjs/operators';

let array = [
  { name: 'John', age: 25 },
  { name: 'Jane', age: 30 },
  { name: 'Bob', age: 35 }
];

of(...array)
  .pipe(filter(item => typeof item === 'object'))
  .subscribe(filteredItem => console.log(filteredItem));