23 lines
759 B
Rust
23 lines
759 B
Rust
// option2.rs
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// Make me compile! Execute `rustlings hint option2` for hints
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fn main() {
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let optional_value = Some(String::from("rustlings"));
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if let Some(value) = optional_value {
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println!("the value of optional value is: {}", value);
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} else {
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println!("The optional value doesn't contain anything!");
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}
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let mut optional_values_vec: Vec<Option<i8>> = Vec::new();
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for x in 1..10 {
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optional_values_vec.push(Some(x));
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}
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// TODO: make this a while let statement - remember that vector.pop also adds another layer of Option<T>
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// You can stack `Option<T>`'s into while let and if let
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while let Some(Some(value)) = optional_values_vec.pop() {
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println!("current value: {}", value);
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}
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}
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