9951 explained code solutions for 126 technologies


rustRust null value example


Null values in Rust are represented by the Option enum. Option is an enum with two variants, Some and None. Some is used to wrap a value, while None is used to indicate the absence of a value.

Example code

let x: Option<i32> = None;

This code creates a variable x of type Option<i32> and assigns it the value None. This indicates that x does not have a value.

Helpful links

Edit this code on GitHub