GitHub - w3c/longtasks: Long Task API

As the page is loading and while the user is interacting with the page afterwards, both the application and browser queue various events that are then executed by the browser -- e.g. the user agent schedules input events based on user’s activity, the application schedules callbacks for requestAnimationFrame and other callbacks etc. Once in the queue, these events are then dequeued one-by-one by th

[efcl]

PerformanceObserverのlongtaskの仕様