35 lines
855 B
Rust
35 lines
855 B
Rust
fn main() {
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let s1 = String::from("Hello");
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let s2 = s1; // s1 goes out of scope here
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println!("{s2}, world!");
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let mut s = String::from("hello");
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s = String::from("world"); // original "hello" value drops here
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println!("hello, {s}");
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let s1 = String::from("hello");
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let s2 = s1.clone(); // heap data gets copied here
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println!("s1 = {s1}, s2 = {s2}");
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let s3 = String::from("forsen");
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copy_string_value(s3);
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// println!("{s3}");
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// will throw and erorr
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let s4 = String::from("gachi");
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let (s5, len) = calculate_length(s4);
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//println!("{s4}");
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// also will throw an error
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println!("string: {s5}, length: {len}")
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}
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fn copy_string_value(string: String) {
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println!("{string}");
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}
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fn calculate_length(s: String) -> (String, usize) {
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let length = s.len();
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(s, length)
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}
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