<!-- preloader -->
    <style type="text/css">
        .preloader_bg { position: fixed; background: rgba(15,15,15,1); width: 100%; height: 100%; top: 0; left: 0; z-index: 200; }
        .preloader_content { position: fixed; left: 50%; top: 50%; transform: translate(-50%,-50%); z-index: 201; font-size: 14px; }
        .preloader_content span { display: block; margin: auto; text-align: center; text-transform: uppercase; color: rgba(225,225,225,1);}
    </style>
    <script type="text/javascript">
    $(function(){
        $('.preloader_bg, .preloader_content').fadeIn(0);
        $(window).load(function(){
            $('.preloader_bg').delay(250).fadeOut(1500);
            $('.preloader_content').delay(250).fadeOut(750);
        });
    });
    </script>
    <div class="preloader_bg"></div>
    <div class="preloader_content">
        <span>Идет загрузка...<br>Подождите...</span>
    </div>
    <noscript>
        <style>
            html, body { opacity: 1 !important; }
            .preloader_bg, .preloader_content { display: none !important; }
        </style>
    </noscript>
    <!-- /preloader -->      
  
  const arr = [
  {
    value: 'aaa'
  },
  {
    value: 'bbb'
  },
  {
    value: 'ccc'
  },
  {
    value: 'ddd'
  },
]
let arr2 = [];
arr.forEach(el => {
   arr2.push(el.value)
})
console.log(arr2)      
  
  - arr = [ 1, 2, 3, 4, 5, 6, 7, 8 ]
mixin xxx(arr, method, ...args)
   - newArr = arr[method](...args)
   p= newArr
+xxx(arr, 'slice', 2, 5)
+xxx(arr, 'filter', n => n & 1)- arr = [ 1, 2, 3, 4, 5, 6, 7, 8 ]
mixin xxx(arr)
  ul
    each n in arr
      li= n
+xxx(arr.slice(-3))
+xxx(arr.filter(n => !(n % 3)))