Enjoy Day 4

Now we need enum to replace "cat" and "duck" type from previous example.

Enums

You also can impl to enum 👇.

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💡 There's more examples about Enums, and match enums.

Don't worry about &'static str or lifetimes just yet, compiler will let you know when need (usually out of { } scope ) and we will talk about it later. Let's continue on other topics.

But I want enum string! How!

That's a great question! See below👇

strum

Install

cargo add strum
cargo add strum_macros

and get

strum = "0.26"
strum_macros = "0.26"

or

cargo add strum --features=derive

and get

strum = { version = "0.26", features = ["derive", "strum_macros"] }

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🤷 strum is not runnable via Rust Playground so output is shown below.

Run 
1️⃣ animal_type: Ok(Cat)
2️⃣ animal_type: "catty"
3️⃣ cat_sound_result: Ok(Cat)
4️⃣ cat_sound_string: "meaowww"
5️⃣ my_pet: "snoopy"

Let's try some more complicated one!

Enums Variants

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Awww, I'm hungry...

Continue to Day 5 ➠