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Actually `setTimeout` is not part of the core language, it's a Web API.

I think the point they were trying to make is that all JS is almost always used with a run loop.

Whereas Ruby and Python are often used without a run loop.

> I think the point they were trying to make is that all JS is almost always used with a run loop.

Sure, but criticising a rant about the propogation of misconceptions by propogating a misconception seems like a self-undermining position :)