String vs &str
String is an owned, growable UTF-8 buffer (a Vec<u8> with a validity invariant); &str is a borrowed slice viewing UTF-8 bytes owned elsewhere, including string literals in the binary. APIs take &str to accept both, and String derefs to &str for free.
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String is an owned, growable UTF-8 buffer (a Vec<u8> with a validity invariant); &str is a borrowed slice viewing UTF-8 bytes owned elsewhere, including string literals in the binary. APIs take &str to accept both, and String derefs to &str for free.
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