Maxim Kirshin

let isAnimated = false;
$('.elem').animate({opacity: 0}, { duration: 1000, queue: false, complete: function() {
	if (!isAnimated) {
  console.log('В консоль выводится 5 сообщений. Как сделать так, чтобы выводилось всего одно?');
  isAnimated = true;
  }
}
});

global $arFilter;
$arFilter = [
  "PROPERTY_SKLAD_1" => !NULL,
  "PROPERTY_SKLAD_2" => !NULL,
  "PROPERTY_SKLAD_3" => !NULL,
]

$(".main").onepage_scroll({
   sectionContainer: "section",     // sectionContainer accepts any kind of selector in case you don't want to use section
   easing: "ease",                  // Easing options accepts the CSS3 easing animation such "ease", "linear", "ease-in",
                                    // "ease-out", "ease-in-out", or even cubic bezier value such as "cubic-bezier(0.175, 0.885, 0.420, 1.310)"
   animationTime: 1000,             // AnimationTime let you define how long each section takes to animate
   pagination: true,                // You can either show or hide the pagination. Toggle true for show, false for hide.
   updateURL: false,                // Toggle this true if you want the URL to be updated automatically when the user scroll to each page.
   beforeMove: function(index) {},  // This option accepts a callback function. The function will be called before the page moves.
   afterMove: function(index) {},   // This option accepts a callback function. The function will be called after the page moves.
   loop: false,                     // You can have the page loop back to the top/bottom when the user navigates at up/down on the first/last page.
   keyboard: true,                  // You can activate the keyboard controls
   responsiveFallback: false,        // You can fallback to normal page scroll by defining the width of the browser in which
                                    // you want the responsive fallback to be triggered. For example, set this to 600 and whenever
                                    // the browser's width is less than 600, the fallback will kick in.
   direction: "vertical"            // You can now define the direction of the One Page Scroll animation. Options available are "vertical" and "horizontal". The default value is "vertical".  
});

// Инициализируем массив
let ourArray = [];
// и число, которым будем заполнять
let num = 0;
// и заполняем его через цикл вложенный в цикл
for (let i = 0; i < 3; i++) {
    for (let j = 0; j < 3; j++) {
        ourArray[i][j] = num;
        num++;
    }
}

$array = [1,2,3,4];
//  инициализируешь переменную
$variable = "";
foreach($array as $value){
// так как мы ранее инициализировали строку, то числа в массиве будут преобразовываться в строку
$variable .= $value;
}
// преобразуем нашу строку обратно в число
$variable = intval($variable);