Enhancing our JavaScript client to control our robot car

As we've mentioned already, our HTML JavaScript client is the most attractive of interfaces. I designed it to be as simple and straightforward as possible in order to explain various concepts. But what if we want to take it to another level? The following is a list of JavaScript libraries that may be used to enhance our HTML JavaScript client.

Nipple.js

Nipple.js (https://www.bypeople.com/touch-screen-joystick/) is a JavaScript touchscreen joystick library that may be used in the control of robots. Nipple.js is basically an onscreen version of pointing stick controls found on some laptops:

If you are creating a JavaScript client for a touchscreen tablet or laptop...