Const vs Var vs Let - JavaScript ES6

Learn about the difference between const, var, and let in JavaScript ES6 (ECMAScript 6). Code ? http://codepen.io/beaucarnes/pen/MbMNEG?editors=0010 Other resources on topic: ? http://www.jstips.co/en/keyword-var-vs-let/ ? https://youtu.be/sjyJBL5fkp8 ? https://medium.com/javascript-scene/javascript-es6-var-let-or-const-ba58b8dcde75#.ub2708mgh JS Nuggets: Brisk JavaScript training and tips