This month the meetup will have a focus on functional programming.
In the beginner section, we'll be covering the rules of functional programming and the various advantages and disadvantages. You can check out a basic plan and see some code samples on github (https://github.com/hbaughman/lijs_functional).
In the advanced section, we'll be talking about how immutable.js (https://facebook.github.io/immutable-js/) can make functional programming easier with an emphasis on it's use with Redux. In addition to being immutable (as you might expect), immutable.js is lazily evaluated which allows you to do some very cool shenanigans that would normally cause memory issues.