Ok, here's a variation.

A programmer is drafted by the military and ordered to write the software for a city destroying weapon. Given the freedom to choose the implementation language, he chooses Javascript. The user enters the city to be destroyed, which is passed to the Function destroyCity().

The General returns from the weapon's fist use in battle furious. "We fired your damn weapon at Bahgdad, and the city's still there! What's going on?"

"I think I know" says the programmer. Javascript passes it's parameters by value, not by reference."

Depending on the language the ampersand could mean by copy or by reference. I suspect the commentor wants by reference, since they want to examine it later.

> Depending on the language the ampersand could mean by copy or by reference

Yikes. Which languages use ampersand to signal passing by value? That's a massive footgun if I'm ever cargo-culting my way through writing some code in one of those languages for the first time.

Isn't the real footgun trying to do work you don't adequately understand?

I generally learn a new language by cargo-culting my way through a few small-ish programs. I wouldn't put anything in production in a language that I didn't adequately understand, but I could certainly waste a bunch of time debugging if I got the meaning of & flipped.

Your right; I meant by reference. I also said MISRA, which implies destruction by means of Sea monster.