rustGet enum value by index in Rust
In Rust, you can get the enum value by index using the .nth()
method. This method takes an index as an argument and returns the enum value at that index. For example, if you have an enum called Fruit
with values Apple
, Banana
, and Orange
, you can get the value at index 1 using Fruit::nth(1)
. This will return Banana
. You can also use the .iter()
method to iterate over all the enum values. For example, Fruit::iter()
will return an iterator over all the enum values.
enum Fruit {
Apple,
Banana,
Orange,
}
let fruit = Fruit::nth(1);
println!("{:?}", fruit);
Output example
Banana
Explanation
The Fruit
enum is declared with three values: Apple
, Banana
, and Orange
. The Fruit::nth(1)
method is used to get the enum value at index 1, which is Banana
. The println!
macro is used to print the value of fruit
, which is Banana
.
Relevant links
Related
- How to create enum from string in Rust
- How to use enum as hashmap key in Rust
- How to create enum from number in Rust
- How to use fmt for enum in Rust
- How to declare enum in Rust
- How to compare enum in Rust
- How to serialize enum in Rust
- How to loop through enum in Rust
- How to cast enum in Rust
- Get certain enum value in Rust
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