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
More of Rust
- How to get a capture group using Rust regex?
- How to match the end of a line in a Rust regex?
- How to perform matrix operations in Rust?
- How to split a string by regex in Rust?
- How to parse JSON string in Rust?
- How to get an entry from a HashSet in Rust?
- How to modify an existing entry in a Rust HashMap?
- How to create a subslice from a Rust slice?
- How to ignore case in Rust regex?
- How to get all matches from a Rust regex?
See more codes...