Callbacks will never be called before the completion of the current run of the
JavaScript
event loop.
source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_promises
In the Spanish version :
Callback functions will never be called before the completion of the current execution of the JavaScript event loop.
What do you mean by saying that callbacks attached to a promise will not be executed before the current execution of the event loop completes? I don't really understand that part