Array Loop for Objects (Angular)

array-loop.ts

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

@Pipe({ name: 'keys' })
export class KeysPipe implements PipeTransform {
	transform(value, args: string[]): any {
		let keys = [];
		// tslint:disable-next-line:forin
		for (let key in value) {
			keys.push(key);
		}
		return keys;
	}
}