Swift Notes

• Unary operators

  • Unary Minus Operator

    let x = 3
    let minusX = -x // minusX equals -3
    let plusX = -minusX // plusX equals 3
    

    Note: Prepended directly before the value it operates on, without any white space

  • Unary Plus Operator

    let y = -3
    let plusY = +y // plusY still equals -3
    

    Note: Plus unary operator do nothing, except for providing symmetry :)