JavaScript promise resolving with setTimeout

Question

I don\'t understand why the first setTimeout function works but the second one doesn\'t. The first one is commented out when I run the second setTimeout. But instead of reso

Answer 1

/* why does setTimeout work with this one... */
 setTimeout( () => resolve( 'Job\'s done!!!' ), 3000 );

when the timeout occur you call a function () => ... wich when executed till resolve the promise

/* but not with this one */
 setTimeout( resolve('done'), 3000 );

here you actually resolve the promise (you execute the result function) and pass the result to the setTimeout function.

Writing

() => resolve( 'Job\'s done!!!' )

is the same as

function() {
    resolve( 'Job\'s done!!!' );
}