Python "or" equivalent in Swift - Operator

Or operator

func |<T>(a:T?, b:T) -> T {
    if a != nil {
        return a!
    }
    return b
}

// You can test it in playground

var optional:String?
var defaultValue:String = "VALUE"

var myString:String = optional | defaultValue

print(myString) //prints VALUE

optional = "TEST"
myString = optional | defaultValue

print(myString) //prints TEST