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| author | mokou <mokou@fastmail.com> | 2022-07-15 14:31:49 +0200 |
|---|---|---|
| committer | mokou <mokou@fastmail.com> | 2022-07-15 14:31:49 +0200 |
| commit | c791cf4232fbfc313279b19b483c1adbca1c6862 (patch) | |
| tree | 655ad6c9d33dab11dfd70f28d0ec29d03749a70b /exercises/options/options2.rs | |
| parent | f1c4caa37fe5027d121aec6433dee85433d9329d (diff) | |
| parent | c265b681b188ea21b3f8585e65ea363fc02c4b50 (diff) | |
Merge branch '5.0-dev'
Diffstat (limited to 'exercises/options/options2.rs')
| -rw-r--r-- | exercises/options/options2.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/exercises/options/options2.rs b/exercises/options/options2.rs new file mode 100644 index 0000000..75b66a3 --- /dev/null +++ b/exercises/options/options2.rs @@ -0,0 +1,25 @@ +// options2.rs +// Execute `rustlings hint options2` or use the `hint` watch subcommand for a hint. + +// I AM NOT DONE + +fn main() { + let optional_word = Some(String::from("rustlings")); + // TODO: Make this an if let statement whose value is "Some" type + word = optional_word { + println!("The word is: {}", word); + } else { + println!("The optional word doesn't contain anything"); + } + + let mut optional_integers_vec: Vec<Option<i8>> = Vec::new(); + for x in 1..10 { + optional_integers_vec.push(Some(x)); + } + + // TODO: make this a while let statement - remember that vector.pop also adds another layer of Option<T> + // You can stack `Option<T>`'s into while let and if let + integer = optional_integers_vec.pop() { + println!("current value: {}", integer); + } +} |
