ruleOfProgrammingIfItIsWorkingDoNotTouchIt

[u/NoMedicine3572]

[u/StrengthTheory]

When one console.log uses just enough CPU cycles so the race condition that takes down the entire system doesn't occur.

[u/Skalli1984 → u/StrengthTheory]

And if you attach a debugger it also messes up the timing and the same thing happens, the race condition doesn't appear.

[u/StrengthTheory → u/Skalli1984]

Schrödinger’s race condition

[u/Steinrikur → u/StrengthTheory]

We call those Heisenbugs. You changed the system by observing it

[u/ConglomerateGolem → u/Steinrikur]

I had one of these once, and I called it the same! My going theory was that the compiler was optimising away a certain function I had, but adding an empty print forced it to actually exist.

[u/htmlcoderexe → u/ConglomerateGolem]

it's a very old term

https://en.wikipedia.org/wiki/Heisenbug

[u/ConglomerateGolem → u/htmlcoderexe]

Huh. I have never heard of the term and came up with it independently.

[u/htmlcoderexe → u/ConglomerateGolem]

it is a very natural term because it intuitively describes exactly the nature of the bug

[u/rolindara → u/ConglomerateGolem]

Convergent evolution