chay.dev
1// Calls of this function should be replaced with calls of `string_slice` or `string`.
2fn placeholder() {}
3
4fn string_slice(arg: &str) {
5 println!("{arg}");
6}
7
8fn string(arg: String) {
9 println!("{arg}");
10}
11
12// TODO: Here are a bunch of values - some are `String`, some are `&str`.
13// Your task is to replace `placeholder(…)` with either `string_slice(…)`
14// or `string(…)` depending on what you think each value is.
15fn main() {
16 string_slice("blue");
17
18 string("red".to_string());
19
20 string(String::from("hi"));
21
22 string("rust is fun!".to_owned());
23
24 string_slice("nice weather".into());
25
26 string(format!("Interpolation {}", "Station"));
27
28 // WARNING: This is byte indexing, not character indexing.
29 // Character indexing can be done using `s.chars().nth(INDEX)`.
30 string_slice(&String::from("abc")[0..1]);
31
32 string_slice(" hello there ".trim());
33
34 string("Happy Monday!".replace("Mon", "Tues"));
35
36 string("mY sHiFt KeY iS sTiCkY".to_lowercase());
37}