generateMarkers.ts

 private generateMarkers(latitude:number, longitude: number, limit: number){
    let markers: any[] = [];
    for(let i =0;i<limit;i++){
      markers.push({
        title: 'hola ' + i,
        position: {
          lat: latitude + Math.random() * (1 - (-1)) + (-1),
          lng: longitude + Math.random() * (1 - (-1)) + (-1)
        }
      });
    }
    return markers;
  }