javascript - dynamically adding markers to google map - angular2 -


so have 2 components, first of them form use adding latitude , longitude service markers. main component map want add markers. first problem initialize map , data in ngoninit() can't dynamically add new data because component doesn't reload , oninit don't run again. second problem don't know how add new markers when initialize map in ngoninit.

that main component:

export class appcomponent implements oninit {   parties: party[] = [];   party_location: location[] = [];   constructor(private partyservice: partyservice) { }   ngoninit() {    map = new google.maps.map(document.getelementbyid('map'), {      center: { lat: -25.363, lng: 131.044 },      scrollwheel: true,      zoom: 16   });     this.parties = this.partyservice.getdata(); //get data     (let item of this.parties) { //try add markers      let marker = new google.maps.marker({       map: map,       position: { lat: item.lan1, lng: item.lan2 },       title: item.title       });     }      if (navigator.geolocation) {        navigator.geolocation.getcurrentposition(function(position) {          let pos = {          lat: position.coords.latitude,          lng: position.coords.longitude        };         infowindow.setposition(pos);        infowindow.setcontent('this you.');        infowindow.open(map);        map.setcenter(pos);      });     }      let infowindow = new google.maps.infowindow;    }  }

may have advice how change code??


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