When using a for loop
for i in 1..10 {}
The compiler tells me to prefix i like this: _i.
What am I actually conveying by putting the underscore in front of variables or functions?
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Shepmaster
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Viktor
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4The compiler message *tells you exactly what is happening*: `= note: #[warn(unused_variables)] on by default. to avoid this warning, consider using \`_i\` instead`. It's an unused variable, and an underscore conveys that you don't care that the variable is unused. – Shepmaster Jan 25 '18 at 19:44