Pipe for Typescript 2.4 enum which contain string initializers

enum.pipe.ts

// Usage:
// <div *ngFor="let item of items | enum"> {{item.key}} | {{item.value}} </div>

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

@Pipe({
  name: 'enum'
})
export class EnumPipe implements PipeTransform {
  transform(object: Object): Array<{ key: string, value: string }> {
    const keys = Object.keys(object);
    return keys.map(key => ({ key, value: Object(object)[key] }) );
  }
}