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fix: remove ambiguous strings4 into example

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This commit is contained in:
wuyangfan 2026-05-20 15:54:24 +08:00
parent 60b369a2fd
commit 04450a6c10
2 changed files with 0 additions and 11 deletions
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2
exercises/09_strings/strings4.rs
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@ -21,8 +21,6 @@ fn main() {
placeholder("rust is fun!".to_owned());
placeholder("nice weather".into());
placeholder(format!("Interpolation {}", "Station"));
// WARNING: This is byte indexing, not character indexing.

9
solutions/09_strings/strings4.rs
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@ -15,15 +15,6 @@ fn main() {
string("rust is fun!".to_owned());
// Here, both answers work.
// `.into()` converts a type into an expected type.
// If it is called where `String` is expected, it will convert `&str` to `String`.
string("nice weather".into());
// But if it is called where `&str` is expected, then `&str` is kept as `&str` since no conversion is needed.
// If you remove the `#[allow(…)]` line, then Clippy will tell you to remove `.into()` below since it is a useless conversion.
#[allow(clippy::useless_conversion)]
string_slice("nice weather".into());
string(format!("Interpolation {}", "Station"));
// WARNING: This is byte indexing, not character indexing.