Removing conditional logic

noconditional.groovy

def addOne = { a ->
    return a + 1
}

def addTwo = { b ->
    return b + 2
}

def decideWhatToRun = [0: addOne, 1: addTwo]

def runSomethingBasedOnInput = { val, input ->
    def fn = decideWhatToRun[val]
    def result = fn.call(input)
    result
}

println runSomethingBasedOnInput(0, 4)