luis-agm
7/22/2017 - 9:27 PM

wa2t.js

const total = _(database) // Wrap json in lodash object
			.map(store => store.hats) // Get all hats by all stores
			.flatten() // Merge all hat arrays, plus remove any empty ones
			.countBy('id').sortBy() // Get amounts by hat id and sort in asc order
			.slice(-3).sum() // Sum top 3;