Update `std::array::from_fn` example comment

[reddevilmidzy]

Location (URL)

https://doc.rust-lang.org/core/array/fn.from_fn.html

rust/library/core/src/array/mod.rs

Lines 90 to 97 in 44860d3

	/// You can also capture things, for example to create an array full of clones
	/// where you can't just use `[item; N]` because it's not `Copy`:
	/// ```
	/// # // TBH `array::repeat` would be better for this, but it's not stable yet.
	/// let my_string = String::from("Hello");
	/// let clones: [String; 42] = std::array::from_fn(|_| my_string.clone());
	/// assert!(clones.iter().all(|x| *x == my_string));
	/// ```

It is not immediately visible to the user, but when the code is executed, comments follow in the playground.

Summary

std::array::repeat is now stable, so it seems necessary to update the comment or revise the example.

[reddevilmidzy]

cc: @scottmcm

[lms0806]

@rustbot claim

[lms0806]

It seems that array:repeat has been stabilized in version 1.91.0.

I think it would be good to remove the TBH phrase and make it like the example at https://doc.rust-lang.org/core/array/fn.repeat.html. What do you think?

[bjorn3]

Then it wouldn't be an example for from_fn anymore. Either keep this example as is or replace it with a better example that does still use from_fn.