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barseghyanartur/rust_dbg_macro_learnings.md

Created February 2, 2023 08:25
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Rust `dbg!` macro learnings
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rust_dbg_macro_learnings.md

Another learning about the fantastic dbg! macro: always pass vars as references!

This works:

let mut s = String::from("hello");
dbg!(&s);

s.push_str(", world!");
dbg!(&s);

This fails:

let mut s = String::from("hello");
dbg!(s);

s.push_str(", world!");
dbg!(s);
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