Rust conditionals

if statement

if num < 5 {
    // ..
} else if {
    // ..
} else {
    // ..
}

Pattern Matching

Like a switch statement,
but the compiler ensures the entire valid range of items is checked for.
especially useful for enums.

In the following case, if _ was omitted
you'd need to ensure the full range of possible i32 numbers were supported!.

// if num is '1', returns 'a'
// if num is >2, returns 'c'
let result = match num {
    1 => "a",
    2 => "b",
    _ => "c",   // anything other than 1 or 2
}