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submitted 1 month ago by cm0002@lemmy.world to c/programmer_humor@programming.dev

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[-] JargonWagon@lemmy.world 28 points 1 month ago

I'm dumb, can someone ELI5 please?

[-] scrion@lemmy.world 80 points 1 month ago

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.

[-] JargonWagon@lemmy.world 14 points 1 month ago

Perfectly explained, thank you!

[-] ptu@sopuli.xyz 4 points 1 month ago

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

[-] scrion@lemmy.world 4 points 1 month ago

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.