rustHow to map a vector in Rust

Mapping a vector in Rust is a simple process. It involves using the map() method on a vector to apply a function to each element of the vector.

let v = vec![1, 2, 3];
let v2 = v.map(|x| x * 2);

The output of the above code will be [2, 4, 6].

Code explanation

• let v = vec![1, 2, 3];: This creates a vector with the elements 1, 2, and 3.
• let v2 = v.map(|x| x * 2);: This uses the map() method to apply the function |x| x * 2 to each element of the vector v.
• [2, 4, 6]: This is the output of the code, a vector with the elements 2, 4, and 6.

Helpful links

• Rust Documentation - Vectors
• Rust Documentation - Iterators

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