rustRust map function example

The map function in Rust is a powerful tool for transforming collections of data. It takes a closure as an argument and applies it to each element in the collection, returning a new collection with the transformed elements.

Example

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

Output example

[2, 4, 6]

Code explanation

• let numbers = vec![1, 2, 3];: This line creates a vector of numbers.
• let doubled_numbers = numbers.map(|x| x * 2);: This line uses the map function to apply the closure |x| x * 2 to each element in the vector numbers, returning a new vector with the transformed elements.

Helpful links

• Rust Documentation - Iterator Trait

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