Question

How to get the data type of a variable in Rust

Answer 1

fn print_type_of<T>(_: &T) {
    println!("{}", std::any::type_name::<T>());
}

fn main() {
    let x = 42;
    let s = "Hello, Rust!";
    
    print_type_of(&x); // Prints: i32 (or i64 depending on platform/inference)
    print_type_of(&s); // Prints: &str
}


/*
run:

i32
&str

*/

 

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