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.
JavaScriptÂ® (often shortened to JS) is a lightweight, interpreted, object-oriented language with first-class functions, and is best known as the scripting language for Web pages, but it's used in many non-browser environments as well.