// accountMap.js import { LightningElement, api, track } from 'lwc'; export default class AccountMap extends LightningElement { @track mapMarkers = []; _accounts; connectedCallback() { this.loadMapMarkers(); } loadMapMarkers() { if (this._accounts && this._accounts.length > 0) { this.mapMarkers = this._accounts.map(account => { return { location: { Street: account.ShippingStreet, City: account.ShippingCity, PostalCode: account.ShippingPostalCode }, title: account.Name, description: `Phone: ${account.Phone}`, icon: 'standard:location' }; }); } } @api get accounts() { return this._accounts; } set accounts(value) { this._accounts = value; this.loadMapMarkers(); } }