Multi JSON Loading

/**

 * Multi JSON Loading (v1.0)

 * GoToLoop (2018-Dec-05)

 * https://Discourse.Processing.org/t/how-do-i-load-multiple-json-urls/6150/16

 * https://OpenProcessing.org/sketch/639946

 */

​

"use strict";

​

const HTTP = 'https://', SITE = 'Query.YahooApis.com/',

      DIR = 'v1/public/', FILE = 'yql',

      P1 = '?q=select * from weather.forecast where woeid in ',

      P2 = '(select woeid from geo.places(1) where text="',

      P3 = ', il")&format=json&env=store://datatables.org/alltableswithkeys',

      URI = HTTP + SITE + DIR + FILE + P1 + P2,

      CITIES = Object.freeze([

        'chicago', 'aurora', 'joliet', 'naperville',

        'rockford','springfield', 'elgin', 'peoria'

      ]),

      jsons = Array(CITIES.length), casts = Array(CITIES.length);

​

function preload() {

  for (let i = 0; i < CITIES.length; ++i)

    jsons[i] = loadJSON(URI + CITIES[i] + P3);

}

​

function setup() {

  grabForecasts();

  logForecasts();

}

​

function grabForecasts() {

  for (let i = 0; i < CITIES.length; ++i)

    casts[i] = jsons[i].query.results.channel.item.forecast;

}

​

function logForecasts() {

  for (let i = 0; i < CITIES.length; ++i) {

    console.info(CITIES[i] + ':');

    console.table(casts[i]);

  }

}