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progress(enums + strings): ___

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AramJonghu
2026-07-26 01:22:48 +02:00
parent 3caf0b31ec
commit f0f6a72101
7 changed files with 33 additions and 11 deletions
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exercises/09_strings/strings4.rs
+9 -9
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@@ -13,23 +13,23 @@ fn string(arg: String) {
// Your task is to replace `placeholder(…)` with either `string_slice(…)`
// or `string(…)` depending on what you think each value is.
fn main() {
placeholder("blue");
string_slice("blue");
placeholder("red".to_string());
string("red".to_string());
placeholder(String::from("hi"));
string(String::from("hi"));
placeholder("rust is fun!".to_owned());
string("rust is fun!".to_owned());
placeholder(format!("Interpolation {}", "Station"));
string(format!("Interpolation {}", "Station"));
// WARNING: This is byte indexing, not character indexing.
// Character indexing can be done using `s.chars().nth(INDEX)`.
placeholder(&String::from("abc")[0..1]);
string_slice(&String::from("abc")[0..1]);
placeholder(" hello there ".trim());
string_slice(" hello there ".trim());
placeholder("Happy Monday!".replace("Mon", "Tues"));
string("Happy Monday!".replace("Mon", "Tues"));
placeholder("mY sHiFt KeY iS sTiCkY".to_lowercase());
string("mY sHiFt KeY iS sTiCkY".to_lowercase());
}