Unexpected productivity boost of Rust

Code written below your line gets executed if you don't return early. More breaking news at 8.

Seriously, why would you think that assigning a value would stop your script from executing? Maybe the Typescript example is missing some context, but it seems like such a weird case to present as a "data race".

exit(), execve(), and friends do immediately stop execution—I could understand why you'd think a redirect would as well.

The redirect is an assignment. In no language has a variable assignment ever stopped execution.

Try this in C:

*(int*)0 = 0;

Modern C compilers could require you to complicate this enough to confuse them, because their approach to UB is weird, if they saw an UB they could do anything. But in olden days such an assignment led consistently to SIGSEGV and a program termination.

Unless you were on systems that mapped address 0 to a writable but always zero value so they could do load and store speculation without worry.

IBM did this for a long time