geomago

// Changes to javascript functions are contained in .js files in the "$sync_path" folder
$updjs = []; // each element contains a set of synctactically correct javascript statements
$maxtime = $lastupd;  // save the most recent update sent

// List all .js files updated later than $lastupd");
foreach (scandir($sync_path) as $file) {
    if (is_dir($file) || pathinfo($file,PATHINFO_EXTENSION)!='js') continue;
    $filetime = date('Y-m-d H:i:s',filemtime("$sync_path/$file"));
    if ($filetime>$lastupd) {
        $updjs[] = file_get_contents("$sync_path/$file");

geomago

function findCheapest(orders) {
	var cheapest = 999999999;
	for (i=0; i<orders.length; i++) {
		cheapest = Math.min(cheapest, findCheapestItem(orders[i].items) );
	}
	return cheapest;
}

function findCheapestItem(items) {
	var cheapest = 999999999;

geomago

	glob = {}; // global object to keep the initial list of properties
	glob.before = Object.keys(window); // save all window properties before any script is loaded

	// showDiff shows (on console.log) the list of "new" properties
	glob.showDiff = function(before,after) {
		for (let p in after) {
			if (before[p] === undefined) {
				console.log(p,': ', after[p], ' = ', window[p]);
			}

geomago

	glob = {}; // global object to keep the initial list of properties
	glob.initial = Object.keys(window); // save all window properties before any script is loaded

	// showDiff shows (on console.log) the list of "new" properties
	glob.showDiff = function(before,after) {
		after.forEach( function(prop) {
			if (before.indexOf(prop)<0) {
				console.log(prop,': ', window[prop]);
			}

geomago

glob.afterLoad = Object.keys(window);
glob.showDiff(glob.initial,glob.afterLoad);

geomago

glob.showDiff(glob.afterLoad, Object.keys(window));

geomago

let car = {
  make: 'Ferrari',
  model: '812GTS',
  price: 336000,
  colour: 'rosso corsa',
  options: {wheels: 'standard rims', seats: 'Daytona seats', interior: 'charcoals'}
};

geomago

let cars = [
  {id: 1, make: 'Ferrari', model: '812GTS', price: 336000, colour: 'rosso corsa'},
  {id: 2, make: 'Ferrari', model: 'F8 Spider', price: 262000, colour: 'giallo modena'},
  {id: 3, make: 'Lamborghini', model: 'Aventador S', price: 329400, colour: 'blu le mans'},
  {id: 4, make: 'Bugatti', model: 'Chiron Pur Sport', price: 3000000, colour: 'blue'},
  {id: 5, make: 'McLaren', model: 'New GT', price: 203000, colour: 'helios orange'},
  {id: 6, make: 'Ferrari', model: 'F8 Spider', price: 262000, colour: 'giallo modena'},
  {id: 7, make: 'Ferrari', model: 'F8 Spider', price: 262000, colour: 'red'},
  {id: 8, make: 'Bugatti', model: 'Chiron Pur Sport', price: 3000000, colour: 'red'},
  {id: 1, make: 'Ferrari', model: '812GTS', price: 336000, colour: 'rosso corsa'} /* duplicate */

geomago

let car = cars.reduce(function(prev, current) {
	return prev.price < current.price ? current:prev;
}, {price:0});

// RESULT IS:
{
    id: 4,
    make: "Bugatti",
    model: "Chiron Pur Sport",
    price: 3000000,

geomago

let car = cars.reduce( (prev, current) => prev.price<current.price ? current:prev, {price:0});