ical.js

import ICAL from "ical.js"; async function parseAndDisplayCalendar() { const icsData = `BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:-//Example Corp//NONSGML My Calendar//EN\nCALSCALE:GREGORIAN\nBEGIN:VEVENT\nUID:event1@example.com\nDTSTAMP:20230101T120000Z\nDTSTART:20230115T100000Z\nDTEND:20230115T110000Z\nSUMMARY:Team Meeting\nDESCRIPTION:Discuss Q1 planning and objectives.\nLOCATION:Conference Room A\nEND:VEVENT\nBEGIN:VEVENT\nUID:event2@example.com\nDTSTAMP:20230101T130000Z\nDTSTART:20230220T140000Z\nDURATION:PT1H30M\nSUMMARY:Project Deadline Review\nRRULE:FREQ=MONTHLY;COUNT=3\nEND:VEVENT\nEND:VCALENDAR`; try { const jcalData = ICAL.parse(icsData); const comp = new ICAL.Component(jcalData); console.log("Calendar events:"); const events = comp.getAllSubcomponents('vevent'); if (events.length === 0) { console.log("No events found."); return; } events.forEach((eventComp, index) => { const event = new ICAL.Event(eventComp); console.log(`\nEvent ${index + 1}:`); console.log(` Summary: ${event.summary}`); console.log(` Location: ${event.location || 'N/A'}`); console.log(` Start: ${event.startDate.toString()}`); if (event.isRecurring()) { console.log(` (Recurring Event - Rule: ${event.getFirstPropertyValue('rrule') ? event.getFirstPropertyValue('rrule').toString() : 'N/A'})`); const iterator = event.iterator(); let occurrences = []; let next; // Get up to 5 occurrences for (let i = 0; i < 5 && (next = iterator.next()); i++) { occurrences.push(new ICAL.Time(next).toString()); } if (occurrences.length > 0) { console.log(` First 5 occurrences: ${occurrences.join(', ')}`); } } else { console.log(` End: ${event.endDate.toString()}`); } }); } catch (error) { console.error("Error parsing iCalendar data:", error); } } parseAndDisplayCalendar();