if

• keyword

• if ... then ... else

  • Examples: +

     if file "piñata" contains "candy" then
        put "Children are happy!"
    else
        put "Children are disappointed."
    end if

• (if ... then ... else) selector expression

  • Examples: +

     set age to (if years >= 100 then "centuries" else "many years")

 and if

, or if operators

• short-circuit versions of the and and or operators