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Rollup merge of #125206 - mgeisler:simplify-std-env-vars, r=jhpratt,tgross35

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Simplify environment variable examples

I’ve found myself visiting the documentation for `std::env::vars` every few months, and every time I do, it is because I want to quickly get a snippet to print out all environment variables :-)

So I think it could be nice to simplify the examples a little to make them self-contained. It is of course a style question if one should import a module a not, but I personally don’t import modules used just once in a code snippet.
This commit is contained in:
Trevor Gross 2024-07-16 20:10:09 -05:00 committed by GitHub
commit 689d27293a
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1 changed files with 4 additions and 10 deletions
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14
library/std/src/env.rs
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@ -120,11 +120,8 @@ pub struct VarsOs {
/// # Examples
///
/// ```
/// use std::env;
///
/// // We will iterate through the references to the element returned by
/// // env::vars();
/// for (key, value) in env::vars() {
/// // Print all environment variables.
/// for (key, value) in std::env::vars() {
/// println!("{key}: {value}");
/// }
/// ```
@ -150,11 +147,8 @@ pub fn vars() -> Vars {
/// # Examples
///
/// ```
/// use std::env;
///
/// // We will iterate through the references to the element returned by
/// // env::vars_os();
/// for (key, value) in env::vars_os() {
/// // Print all environment variables.
/// for (key, value) in std::env::vars_os() {
/// println!("{key:?}: {value:?}");
/// }
/// ```