>Using _ as a placeholder for unused variables can lead to confusion I would hav... | Hacker News

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		tayo42 2 days ago \| parent \| context \| favorite \| on: Patterns for Defensive Programming in Rust >Using _ as a placeholder for unused variables can lead to confusion I would have guessed linters would have complained about what's being suggested there. Is the something special about var: _ thing that avoids it?

dwattttt 1 day ago [–]

Underscore acts as a wildcard, denoting that you don't want to bind a variable. Quoting the Rust reference[0]:

> Underscore expressions, denoted with the symbol _, are used to signify a placeholder in a destructuring assignment.

[0]: https://doc.rust-lang.org/reference/expressions/underscore-e...

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