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 use non-capturing groups in Rust regex?
- How to match the end of a line in a Rust regex?
- How to split a string with Rust regex?
- How to use a custom hash function with a Rust HashMap?
- How do I print a variable in Rust?
- How to use regex lookahead in Rust?
- How to use the global flag in a Rust regex?
- How to count elements in a Rust HashMap?
- How do you reverse a range in Rust?
- How do I find the index of a substring in a string in Rust?
See more codes...