Clojure's 'let' equivalent in Scala

Question

Often I face following situation: suppose I have these three functions

def firstFn: Int = ...
def secondFn(b: Int): Long = ...
def thirdFn(x: Int, y: Long, z:         


        

Answer 1

Why not use pattern matching here:

def calculate(a: Long) = firstFn match { case f => secondFn(f) match { case s => thirdFn(f,s,s + a) } }