1. 8.0.0
    Type OperatorSwiftBSONSwift

    +(_:)

    Returns the given number unchanged.

    static func + (x: Self) -> Self

    Returns

    The given argument without any changes.

    Overview

    You can use the unary plus operator (+) to provide symmetry in your code for positive numbers when also using the unary minus operator.

    let x = -21
    let y = +21
    // x == -21
    // y == 21