enqueueTask.js

  // Adds to task queue.
  enqueueTask(taskHandler, taskData) {
    this.taskList.push({
      // taskHandler is this.logTaskHandler
      handler: taskHandler,
      /*
        An object as so:
          {
            count: 104,
            text: "This text is from task number 90 of 100"
          }
      */
      data: taskData
    });

    // Keep track of length of list
    this.totalTaskCount++;
    // It is only null when the component first renders
    if (!this.taskHandle) {
      this.taskHandle = requestIdleCallback(this.runTaskQueue);
    }

    this.scheduleStatusRefresh();
  }