rustHow do I determine the type of a variable in Rust?
The type of a variable in Rust can be determined using the std::any::type_name function. This function takes a reference to a variable and returns a string containing the type of the variable.
let x = 5;
println!("x is of type {}", std::any::type_name::<&x>());
Output example
x is of type i32
The code above consists of the following parts:
let x = 5;- This declares a variablexwith the value5.std::any::type_name::<&x>()- This is a function call tostd::any::type_namewhich takes a reference to the variablexas an argument.println!("x is of type {}", std::any::type_name::<&x>());- This prints the type of the variablexto the console.
Helpful links
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