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Merge pull request #486 from Hugoo/master

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Rename first_word to first_letter
This commit is contained in:
Sunface
2024-01-03 09:06:17 +08:00
committed by GitHub
parent 4b4d3453b3 7ac53b8091
commit a3ab98c36a
2 changed files with 8 additions and 8 deletions
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8
en/src/compound-types/slice.md
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@ -84,15 +84,15 @@ fn main() {
fn main() { fn main() {
let mut s = String::from("hello world"); let mut s = String::from("hello world");
// Here, &s is `&String` type, but `first_word` need a `&str` type. // Here, &s is `&String` type, but `first_letter` needs a `&str` type.
// It works because `&String` can be implicitly converted to `&str. If you want to know more, this is called `Deref coercion`. // It works because `&String` can be implicitly converted to `&str. If you want to know more, this is called `Deref coercion`.
let word = first_word(&s); let letter = first_letter(&s);
s.clear(); // error! s.clear(); // error!
println!("the first word is: {}", word); println!("the first letter is: {}", letter);
} }
fn first_word(s: &str) -> &str { fn first_letter(s: &str) -> &str {
&s[..1] &s[..1]
} }
``` ```

8
solutions/compound-types/slice.md
View File

@ -62,16 +62,16 @@ fn main() {
fn main() { fn main() {
let mut s = String::from("hello world"); let mut s = String::from("hello world");
// here, &s is `&String` type, but `first_word` need a `&str` type. // here, &s is `&String` type, but `first_letter` needs a `&str` type.
// it works because `&String` can be implicitly converted to `&str, If you want know more ,this is called `Deref` // it works because `&String` can be implicitly converted to `&str, If you want know more ,this is called `Deref`
let word = first_word(&s); let letter = first_letter(&s);
println!("the first word is: {}", word); println!("the first letter is: {}", letter);
s.clear(); s.clear();
} }
fn first_word(s: &str) -> &str { fn first_letter(s: &str) -> &str {
&s[..1] &s[..1]
} }
``` ```