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A comment on Await in Rust. Parent comment

Re:Await in Rust by heavenlyblue on Monday August 12, 2019 @10:21AM (#20675632)
a) this function is clearly marked as sync b) the question of why does it exist if the async version if available is beyond me
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Re:Await in Rust by eropple on Monday August 12, 2019 @10:26AM (#20675684)
rom a practical perspective, it's much easier to deal with `fs.readFileSync` in top-level code than to dive face-first into callbacks. (Remember, `fs.readFile` doesn't return a `Promise`.)

If `fs` was promise-aware and top-level await existed, it would be a different conversation. As-is, for writing a one-off script, avoiding callback hell is pretty nice.

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Re:Await in Rust by amaranth on Monday August 12, 2019 @11:33AM (#20676361)
Top-level await is still a problem but a Promise version of the `fs` API has been available since Node v10.

https://nodejs.org/api/fs.html#fs_fspromises_readfile_path_o...

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Re:Await in Rust by eropple on Monday August 12, 2019 @11:36AM (#20676386)
TIL - never looked. (Most of our stuff is stuck on 8.x and I've got some work to do to upgrade us; never looked at the changes!) Thanks for the pointer.
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Re:Await in Rust by michaelmior on Monday August 12, 2019 @11:30AM (#20676318)
Agreed. I've used it from time to time for writing simple scripts and it does make things much easier. You don't really have to worry about a CLI script blocking.
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