The output is sorted due to the fact that for each number, a timer is started that prints out the number after waiting a number of milliseconds equal to said number.

Therefore, 1 is printed first after delaying for 1 millisecond, 5 is printed second after 5 milliseconds etc.

[–] ptu@sopuli.xyz 4 points 1 month ago (1 children)

So all items in the array are launched simultaneuously and ran in parallel instead of sequentially?

[–] scrion@lemmy.world 4 points 1 month ago (1 children)

They are launched sequentially, but run simultaneously, yes - at least some of them. And they run concurrently but not in parallel - using a single execution context, there is only a single thread, so no parallelism exist.

[–] ptu@sopuli.xyz 1 points 1 month ago

I see, I was only aware of sleep but that makes sense. Thanks for your insight.

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