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Assignment:

number = 42 opposite = true

Conditions:

number = -42 if opposite

Functions:

square = (x) -> x * x

Arrays:

list = [1, 2, 3, 4, 5]

Objects:

math = root: Math.sqrt square: square cube: (x) -> x * square x

Splats:

race = (winner, runners...) -> print winner, runners

Existence:

alert "I knew it!" if elvis?

Array comprehensions:

cubes = (math.cube num for num in list)