The "run loop" hooks into the existing browser's event loop in order to coalesce side-effects. This is exactly the same thing that the browser does when you make a number of changes to the DOM in an event handler.
There is nothing strange going on here.
The "run loop" hooks into the existing browser's event loop in order to coalesce side-effects. This is exactly the same thing that the browser does when you make a number of changes to the DOM in an event handler.
There is nothing strange going on here.