Method _scheduleEffect

src/core/runtime/reactivity.js:330–338

* Add an effect to the pending set. * Schedules a microtask to run them if one isn't already scheduled. * @param {Effect} effect

(effect)

     * @param {Effect} effect
     */
    _scheduleEffect(effect) {
        if (effect._isStopped) return;
        this._pendingEffects.add(effect);
        if (!this._isRunScheduled) {
            this._isRunScheduled = true;
            var self = this;
            queueMicrotask(function () { self._runPendingEffects(); });
        }
    }

    /**
     * Set up the single global MutationObserver and delegated input/change