JSFiddle - React, Tailwind, and code Playground

by Cyril J

HTML

<div id="example"></div>

JavaScript

/*
  Cyril Jandia (02/2016)

  Public Domain.

  NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
  
  ( See also: https://jsfiddle.net/YSharpLanguage/kj9pk8oz/10 )
*/
JSLT();

/*
  1.1.2. Grouping Queries for JSON
  http://jsoniq.org/docs/JSONiq-usecases/html-single/index.html#jsongrouping
*/
var sales = [
  { "product" : "broiler", "store number" : 1, "quantity" : 20  },
  { "product" : "toaster", "store number" : 2, "quantity" : 100 },
  { "product" : "toaster", "store number" : 2, "quantity" : 50 },
  { "product" : "toaster", "store number" : 3, "quantity" : 50 },
  { "product" : "blender", "store number" : 3, "quantity" : 100 },
  { "product" : "blender", "store number" : 3, "quantity" : 150 },
  { "product" : "socks", "store number" : 1, "quantity" : 500 },
  { "product" : "socks", "store number" : 2, "quantity" : 10 },
  { "product" : "shirt", "store number" : 3, "quantity" : 10 }
];

var products = [
  { "name" : "broiler", "category" : "kitchen", "price" : 100, "cost" : 70 },
  { "name" : "toaster", "category" : "kitchen", "price" : 30, "cost" : 10 },
  { "name" : "blender", "category" : "kitchen", "price" : 50, "cost" : 25 },
  {  "name" : "socks", "category" : "clothes", "price" : 5, "cost" : 2 },
  { "name" : "shirt", "category" : "clothes", "price" : 10, "cost" : 3 }
];

var stores = [
  { "store number" : 1, "state" : "CA" },
  { "store number" : 2, "state" : "CA" },
  { "store number" : 3, "state" : "MA" },
  { "store number" : 4, "state" : "MA" }
];

var nestedGroupingAndAggregate = stores.select().orderBy("state").groupBy("state")
( function(byState) {
    var state = byState[0],
        stateStores = byState[1];
    byState = { };
    return (
      (
        byState[state] =
        products.select().orderBy("category").groupBy("category")
        ( function(byCategory) {
            var category = byCategory[0],
                categoryProducts = byCategory[1],
                categorySales = sales.filter(function(sale) {
              ...