Parkinsonâs Disease (PD) is a chronic, progressive disorder that affects nerve cells deep in the brain responsible for planning and controlling body movement. Dopamine is a chemical used in body movement.
Chart.js is a JavaScript library that allows you to draw different types of charts by using the HTML5 canvas element. Since it uses canvas, you have to include a polyfill to support older browsers. The one suggested by the author is ExplorerCanvas, so you may want to stick with it.
JS is a file extension for a JavaScript source code file format. JavaScript is used in Web development to do such things as: Automatically change a formatted date. Cause a linked-to page to pop up in a new window. Cause text or an image to change during a mouse rollover.