[GrayShade]

You can still have race conditions in single-threaded async code.

[cjones26]

Well I don't think that could technically be considered a race condition, as it's clearly a design problem in the code causing what would appear to be a "pseudo" race condition.

[GrayShade]

Why not? It is a race condition, just like TOCTTOU is a race condition that doesn't necessarily involve threads.

Note the difference between race conditions in general and data races that involve unsynchronized access to shared memory.

[minitech]

And “Javascript would have categorically improved on this compared to more traditional multi-threaded solutions” remains true nevertheless.