checkerboard-demo

Demos for the Checkerboard framework (GitHub, NPM).

Use

node demo-server

Go to http://server:9999/demos/demo.html; e.g. http://localhost:9999/demos/whiteboard.html.

Open in multiple tabs or multiple devices to see the synchronization effect. Restart the server to clear the store.

coords

Open the console on all devices. Observe what happens when you click on the document body, and when you refresh the page.

whiteboard

A simple whiteboard. Observe how drawings stay when you refresh the page.

whiteboard-mt

A multitouch version of whiteboard.

atm

Demonstrates the synchronization effect with extreme lag. Observe that eventually the sum of bank + pocket 1 + pocket 2 will always be 100, even if you "trick" the server (e.g. by simulataneously withdrawing $20 from both ATMs when there is only $20 in the bank).