rustHow to get the index of a slice value in Rust?

The index() method can be used to get the index of a slice value in Rust.

Example code

let arr = [1, 2, 3, 4, 5];
let index = arr.index(2);
println!("The index of 2 is {}", index);

Output example

The index of 2 is 1

Code explanation

• let arr = [1, 2, 3, 4, 5];: This line declares an array of integers.
• let index = arr.index(2);: This line calls the index() method on the array, passing in the value 2 as an argument.
• println!("The index of 2 is {}", index);: This line prints the index of the value 2.

Helpful links

• Rust Documentation - Primitive Types
• Rust Documentation - Index Method

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