import { Component, ViewChild, AfterViewInit } from '@angular/core'; import { jqxCalendarComponent } from 'jqwidgets-scripts/jqwidgets-ts/angular_jqxcalendar'; @Component({ selector: 'app-root', templateUrl: './app.component.html' }) export class AppComponent implements AfterViewInit { @ViewChild('myCalendar') myCalendar: jqxCalendarComponent; ngAfterViewInit(): void { let date1 = new Date(); let date2 = new Date(); let date3 = new Date(); date1.setDate(5); date2.setDate(15); date3.setDate(16); // Add special dates by invoking the addSpecialDate method. this.myCalendar.addSpecialDate(date1, '', 'Special Date1'); this.myCalendar.addSpecialDate(date2, '', 'Special Date2'); this.myCalendar.addSpecialDate(date3, '', 'Special Date3'); } }