eternalfire

function debounce(func, wait = 10, immediate = true) {
      let timeout;
      return function() {
        let context = this, args = arguments;
        let later = function() {
          timeout = null;
          if (!immediate) func.apply(context, args);
        };
        let callNow = immediate && !timeout;
        clearTimeout(timeout);
        timeout = setTimeout(later, wait);
        if (callNow) func.apply(context, args);
      };
    };

    let scrollPos = 0;
    const nav = document.querySelector('.site-nav');

    function checkPosition() {
      let windowY = window.scrollY;
      if (windowY < scrollPos) {
        nav.classList.add('is-visible');
        nav.classList.remove('is-hidden');
      } else {
        nav.classList.add('is-hidden');
        nav.classList.remove('is-visible');
      }
      scrollPos = windowY;
    }
    window.addEventListener('scroll', debounce(checkPosition));

$a = 122333444455556666667777777;
$b = 5;

echo $a,'<br>';
echo 'Число ', $b, ' встречается в числе ', $a, ', ', substr_count($a, $b), ' раз(а)';

$client = new \Goutte\Client();

$guzzleClient = new \GuzzleHttp\Client(array(
    'curl' => array(
        CURLOPT_TIMEOUT => 60,
    ),
));

$client->setClient($guzzleClient);

$crawler = $client->request('GET', 'http://httpbin.org/stream/1024', [
    'on_stats' => function (TransferStats $stats) {
        echo $stats->getEffectiveUri() . "\n";
        echo $stats->getTransferTime() . "\n";
        var_dump($stats->getHandlerStats());

        // You must check if a response was received before using the
        // response object.
        if ($stats->hasResponse()) {
            echo $stats->getResponse()->getStatusCode();
        } else {
            // Error data is handler specific. You will need to know what
            // type of error data your handler uses before using this
            // value.
            var_dump($stats->getHandlerErrorData());
        }
    }
]);