JSFiddle - React, Tailwind, and code Playground

HTML

<div id="event-list"></div>

JavaScript

var i = 0;
var items = [];
var url = "https://www.googleapis.com/calendar/v3/calendars/h5d9i9jrdp2kiljks9erv1q3ec%40group.calendar.google.com/events?orderBy=startTime&singleEvents=true&maxResults=5&alt=json&key=AIzaSyCS2urbHxNXNHz19NlN0WReY5UO6S0dnUU";

$.getJSON(url, function (data) {
    for (i in data['items']) {
        item = data['items'][i];
        $("#event-list").append(item.summary + "<br/>");
    }
});