JavaScript Array superpowers: Map, Filter, Reduce (part 2)
With great power comes great responsibility. Array.prototype.reduce is your next superpower to learn and a very useful (yet somewhat complicated) method to master. Not to worry, I got your back.
Not only is reduce great for running stats on large collections of data, running mathematical operations on sets of data, it's also a utility used to help functional programmers compose smaller generic functions into larger more specific functions. Before you can weld the super power, you must take in and understand the subtle and not-so subtle caveats of reduce. That is what this video is for.
In the next video we'll be working with a large set of JSON data with all three of the methods learned in this series and then some. In that video I'll also give you at home a uri so that you too can practice your skills on more realistic data-sets.
