if/then/else Expressions

if/then/else is similar to other languages:

// [1]
if a < b then
    println("less")
else
    println("more")

// [2]
if a < b then
    //
else if a > b
    //
else if a == b
    //
else
    //

Can optionally add end if at the end:

if a < b then
    println("less")
else
    println("more")
end if

&& (and) and || (or):

if a < b && a < c then
    // your code
else
    // your code

if/then/else is an expression, so you can use it as a ternary operator:

val rez = if a < b then a else b

books by alvin