Function nextTick

lib/test/angular/1.4.3/angular-animate.js:291–309

()

  return scheduler;

  function nextTick() {
    if (!tickQueue.length) return;

    var updatedQueue = [];
    for (var i = 0; i < tickQueue.length; i++) {
      var innerQueue = tickQueue[i];
      runNextTask(innerQueue);
      if (innerQueue.length) {
        updatedQueue.push(innerQueue);
      }
    }
    tickQueue = updatedQueue;

    if (!cancelFn) {
      $$rAF(function() {
        if (!cancelFn) nextTick();
      });
    }
  }

  function runNextTask(tasks) {
    var nextTask = tasks.shift();