feat: Add exercise variables6 covering const (#352)

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Said Aspen 2020-04-14 10:13:20 +02:00 committed by GitHub
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@ -0,0 +1,9 @@
// variables5.rs
// Make me compile! Execute the command `rustlings hint variables6` if you want a hint :)
// I AM NOT DONE
const NUMBER = 3;
fn main() {
println!("Number {}", NUMBER);
}

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@ -56,6 +56,21 @@ You can read more about 'Shadowing' in the book's section 'Variables and Mutabil
https://doc.rust-lang.org/book/ch03-01-variables-and-mutability.html#shadowing https://doc.rust-lang.org/book/ch03-01-variables-and-mutability.html#shadowing
Try to solve this exercise afterwards using this technique.""" Try to solve this exercise afterwards using this technique."""
[[exercises]]
name = "variables6"
path = "exercises/variables/variables6.rs"
mode = "compile"
hint = """
We know about variables and mutability, but there is another important type of
variable available; constants.
Constants are always immutable and they are declared with keyword 'const' rather
then keyword 'let'.
Constants types must also always be annotated.
Read more about constants under 'Differences Between Variables and Constants' in the book's section 'Variables and Mutability':
https://doc.rust-lang.org/book/ch03-01-variables-and-mutability.html
"""
# IF # IF
[[exercises]] [[exercises]]