Add example for request + "Garbage Collection"

[WTCT-TOP]

This relates to...

See #3914

Changes

Added an example for request + "Garbage Collection".

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[KhafraDev]

It was added under the fetch specification compliance section. It should be moved elsewhere.

[mcollina]

Can you remove the unnecessary promises?

[WTCT-TOP]

@KhafraDev do you think I should move the whole GC section or just the new example for request?
@mcollina what do you mean by "unnecessary promises"? use async/await instead of .then/.catch? I followed the existing example..

Also, is there a reason to await res.body.dump() if I don't care about the body? isn't res.body.dump() (without await) good enough?

[mcollina]

@mcollina what do you mean by "unnecessary promises"? use async/await instead of .then/.catch?

yes exactly. Currently this allocates one promise too much ;).

Also, is there a reason to await res.body.dump() if I don't care about the body? isn't res.body.dump() (without await) good enough?

If you don't await dump, you'll still have asynchronous activity happening in the background, as the body will not be dumped immediately. Not awaiting it defeats the purpose of the example, as without it there will be lingering memory and activity running.

[WTCT-TOP]

I've updated both examples to use async await, let me know what you think..

[mcollina]

lgtm