38 lines
751 B
Rust
38 lines
751 B
Rust
fn main() {
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let my_string = String::from("Hello world");
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let word = find_first(&my_string[0..6]);
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println!("{word}");
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let word = find_first(&my_string[..]);
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println!("{word}");
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let word = find_first(&my_string);
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println!("{word}");
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let my_literal_string = "hello world";
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let word = find_first(&my_literal_string[0..6]);
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println!("{word}");
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let word = find_first(&my_literal_string[..]);
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println!("{word}");
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let word = find_first(&my_literal_string);
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println!("{word}");
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}
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fn find_first(words: &str) -> &str {
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let bytes = words.as_bytes();
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for (i, &item) in bytes.iter().enumerate() {
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if item == b' ' {
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return &words[..i];
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}
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}
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&words[..]
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} |