Rust: from zero to pretty-well-versed in 30 minutes

I found the article A half-hour to learn Rust by Amos to be extremely helpful in learning the syntax and mechanics of Rust.

It starts out with the absolute basics:

“let introduces a variable binding […]”

then takes you through

• Modules
• Blocks
• Conditionals
• Matches
• Options
• mutables
• Copy/clone semantics
• Traits
• Generic parameters
• Constraints
• Macros
• Enums
• Lifetimes and borrowing
• Generic lifetimes
• Statics vs. owned vs. referenced
• Slices and range literals (Index and IndexMut)
• Results
• Errors, panic and unwrap, expect() and ?
• Closures (Fn, FnMut, and FnOnce)
• move
• for … in

and ends up with a function builder that tests strings:

fn make_tester<'a>(answer: &'a str) -> impl Fn(&str) -> bool + 'a {
    move |challenge| {
        challenge == answer
    }
}

fn main() {
    let test = make_tester("hunter2");
    println!("{}", test("*******"));
    println!("{}", test("hunter2"));
}

// output:
// false
// true