31 lines
577 B
Markdown
31 lines
577 B
Markdown
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# Rust Notes
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## Options
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So options are things that maybe contain values.
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```rust
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let option_a: Option<u8> = Some(8);
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let option_b: Option<u8> = None;
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```
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To get at the value of a Options you have a few options;
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```rust
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let res:u8 = option_a.unwrap(); // using option.unwrap -> panics if value is none
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if let Some(unwrapped1) = option_a {
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println!("Unwrapped1 {}", unwrapped1);
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}else {
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println!("None Unwrapped1");
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}
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match option_a {
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None => println!("None Unwrapped"),
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Some(unwrapped1) => {
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println!("Unwrapped1 {}", unwrapped1)
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},
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}
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```
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