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String (update (format! marco (don't take ownership, let s1 = String:…

String

update

format! marco

let s1 = String::from("tic");
let s2 = String::from("tac");
let s3 = String::from("toe");
let s = format!("{}-{}-{}", s1, s2, s3);

+ operator

let s1 = String::from("hello, ");
let s2 = String::from("world");
let s3 = s1 + &s2;

push() method

let mut s = String::from("some string");
s.push('x');

push_str() method

let mut s = String::from("some string");
s.push_str("append string");

create

let data = "some string";
let s = data.to_string();

let new_s = "some string".to_string();

iterating

for b in "hello".bytes() {
    println!("{}", b);
}

for c in "hello".chars() {
    println!("{}", c);
}

slicing strings

let hello = String::from("some string");
let s = &hello[0..3];