import { Injectable } from '@angular/core'; @Injectable() export class FooService { ex: any; bar: string[] = []; /** * @param {string} val The entry value * @returns {string} The string * @example * FooService.open('yala'); */ open(val: string): string { return 'test'; } /** * @param {string} val The entry value * @return {string} Another string */ close(work: (toto: string) => void): string { return 'test'; } }