src/doc/book/listings/ch08-common-collections/listing-08-16/src/main.rs


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fn main() {
    // ANCHOR: here
    let mut s1 = String::from("foo");
    let s2 = "bar";
    s1.push_str(s2);
    println!("s2 is {s2}");
    // ANCHOR_END: here
}