question: when is memory for each queued function garbage collected?

[stlbucket]

if you put 1000 functions into a queue, will the memory for each be managed along the way or will they all be garbage collected after all promises are resolved?

[sindresorhus]

Can you show an example of what you mean? Are you talking about the limit() function or the function passed to limit()? If the former, it's up to you how long it's stored. If you use Promise.all(), it's stored until the end. If the latter, it's released after being called, so along the way.