Name: #Rust 🦀 – Let’s create a Generic log() Function👍
Rating: 2.7 (4769 reviews)
Author: elbruno

#Rust 🦀 – Let’s create a Generic log() Function👍

El Bruno - Jan 18 '23 -

- Dev Community

Hi !

Let’s create a generic log function. This will not make a lot of sense, since the println! function already support lots of data types. However, this is a nice way to understand how generics works.

Here is the log function.


use std::fmt::Display;

// Generic Function to print data to the console
fn console_log<T: Display>(x: T) {
    println!("{}", x);
}

The log function receives a parameter x, that support any type from Display, and then it prints the parameter to the console.

The following sample shows

Print a String
Print an Integer
Print a Struct, that implements a function to show the struct data

And the output is

Source Code

Super cool !

Happy coding!

Greetings

El Bruno