Function proxyCallback

esm/ScrollTrigger.js:2307–2321

(type, callback)

      interval = vars.interval || 0.016,
      batchMax = vars.batchMax || 1e9,
      proxyCallback = function proxyCallback(type, callback) {
    var elements = [],
        triggers = [],
        delay = gsap.delayedCall(interval, function () {
      callback(elements, triggers);
      elements = [];
      triggers = [];
    }).pause();
    return function (self) {
      elements.length || delay.restart(true);
      elements.push(self.trigger);
      triggers.push(self);
      batchMax <= elements.length && delay.progress(1);
    };
  },
      p;

  for (p in vars) {