How to read an integer input from the user in Rust 1.0?

Question

Existing answers I\'ve found are all based on from_str (such as Reading in user input from console once efficiently), but apparently from_str(x) h

Answer 1

Here is a version with all optional type annotations and error handling which may be useful for beginners like me:

use std::io;

fn main() {
    let mut input_text = String::new();
    io::stdin()
        .read_line(&mut input_text)
        .expect("failed to read from stdin");

    let trimmed = input_text.trim();
    match trimmed.parse::() {
        Ok(i) => println!("your integer input: {}", i),
        Err(..) => println!("this was not an integer: {}", trimmed),
    };
}