rustHow to define closure as variable in Rust

A closure in Rust is a function that can capture variables from its environment. It can be defined as a variable using the let keyword, followed by a name for the closure, and then the closure itself, enclosed in curly braces. For example:

let my_closure = |x| x + 1;

This closure takes an argument x and returns x + 1. The output of this closure when called with an argument of 2 would be 3:

let result = my_closure(2);
println!("{}", result);

Output example:

3

The |x| syntax is used to define the parameters of the closure, and the code after the | is the body of the closure. The closure can then be used like any other function, with the parameters passed in as arguments.

Helpful links

• Rust Closures
• Rust Closure Syntax
• Rust Closure Capturing

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