# Joint Events (JavaScript Scheduler) | DayPilot Pro for JavaScript Sandbox

> [Joint events](https://doc.daypilot.org/scheduler/joint-events/) will be moved and resized together.

## Links

- Canonical HTML: /sandbox/scheduler/eventsjoint.html
- Source HTML folder: /sandbox/scheduler/
- Catalog root: /sandbox/
- Catalog: /sandbox/llms.txt

## Source

### Inline demo script 1

```javascript
const dp = new DayPilot.Scheduler("dp", {
            startDate: "2026-01-01",
            days: 365,
            scale: "Day",
            timeHeaders: [
                {groupBy: "Month", format: "MMMM yyyy"},
                {groupBy: "Cell", format: "d"}
            ],
            treeEnabled: true,
            resources: [
                {name: "Room A", id: "A"},
                {name: "Room B", id: "B"},
                {name: "Room C", id: "C"},
                {name: "Room D", id: "D"},
                {name: "Room E", id: "E"},
                {name: "Room F", id: "F"},
                {name: "Room G", id: "G"},
                {name: "Room H", id: "H"},
                {name: "Room I", id: "I"},
                {name: "Room J", id: "J"},
                {name: "Room K", id: "K"}
            ],
            onTimeRangeSelected: async args => {
                const modal = await DayPilot.Modal.prompt("New event name:", "Event");
                dp.clearSelection();
                if (modal.canceled) {
                    return;
                }
                dp.events.add({
                    start: args.start,
                    end: args.end,
                    id: DayPilot.guid(),
                    resource: args.resource,
                    text: modal.result
                });
                dp.message("Created");
            },
            height: 300
        });
        dp.init();
        dp.scrollTo("2026-03-25");


        const app = {
            init() {
                this.loadEventData();
                this.addEventHandlers();
            },
            loadEventData() {
                const events = [];

                for (let i = 0; i < 8; i++) {
                    const duration = Math.floor(Math.random() * 6) + 1; // 1 to 6
                    const durationDays = Math.floor(Math.random() * 6); // 0 to 5
                    const start = Math.floor(Math.random() * 6) + 2; // 2 to 7
                    const res = Math.floor(Math.random() * 6); // 0 to 5

                    const e = {
                        start: new DayPilot.Date("2026-03-25T00:00:00").addDays(start),
                        end: new DayPilot.Date("2026-03-25T12:00:00").addDays(start).addDays(durationDays).addHours(duration),
                        id: DayPilot.guid(),
                        resource: String.fromCharCode(65 + i),
                        text: "Event",
                        join: 5
                    };

                    events.push(e);
                }

                dp.update({events});
            },
            addEventHandlers() {
                document.querySelector("#move-together").addEventListener("change", function() {
                    dp.jointEventsMove = this.checked;
                });

                document.querySelector("#resize-together").addEventListener("change", function() {
                    dp.jointEventsResize = this.checked;
                });
            }
        };
        app.init();
```