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Is it just me, or is the return missing in the `function` (or am _I_ missing something :)? Not important of course, just pointing it out...

Good catch! I wrote that example in a hurry on my lunch break so I take accountability for the mistake.

If you omit the {} you can then also omit the return.

True but irrelevant, the GP is talking about the top level function, not the fat arrow one.

Guess I was also in a hurry!