diff options
Diffstat (limited to 'exercises/option')
| -rw-r--r-- | exercises/option/option2.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/exercises/option/option2.rs b/exercises/option/option2.rs new file mode 100644 index 0000000..a55f734 --- /dev/null +++ b/exercises/option/option2.rs @@ -0,0 +1,25 @@ +// option2.rs +// Make me compile! Execute `rustlings hint option2` for hints + +// I AM NOT DONE + +fn main() { + let optional_value = Some(String::from("rustlings")); + // Make this an if let statement whose value is "Some" type + value = optional_value { + println!("the value of optional value is: {}", value); + } else { + println!("The optional value doesn't contain anything!"); + } + + let mut optional_values_vec: Vec<Option<i8>> = Vec::new(); + for x in 1..10 { + optional_values_vec.push(Some(x)); + } + + // 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 + value = optional_values_vec.pop() { + println!("current value: {}", value); + } +} |
