Iterate over a series of values with for.
The expression immediately following in must implement the IntoIterator trait.
for _ **in** 1..3 {} - Iterate over an exclusive range up to but excluding 3.for _ **in** 1..=3 {} - Iterate over an inclusive range up to and including 3.(Read more about range patterns)
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Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/keyword.in.html