Function _callback

esm/gsap-core.js:965–986

(animation, type, executeLazyFirst)

  return label;
},
    _callback = function _callback(animation, type, executeLazyFirst) {
  var v = animation.vars,
      callback = v[type],
      prevContext = _context,
      context = animation._ctx,
      params,
      scope,
      result;

  if (!callback) {
    return;
  }

  params = v[type + "Params"];
  scope = v.callbackScope || animation;
  executeLazyFirst && _lazyTweens.length && _lazyRender(); //in case rendering caused any tweens to lazy-init, we should render them because typically when a timeline finishes, users expect things to have rendered fully. Imagine an onUpdate on a timeline that reports/checks tweened values.

  context && (_context = context);
  result = params ? callback.apply(scope, params) : callback.call(scope);
  _context = prevContext;
  return result;
},
    _interrupt = function _interrupt(animation) {
  _removeFromParent(animation);