What is a recursive method? A method that calls itself many times before reaching a specific condition or base case. What is a tail-recursive method? A method which calls itself in the last instruction (tail-call). In the case of Scala (and other FP languages), a tail-recursive method can reuse the Read more…
Let’s say that we have the following code in Scala (too similar to Java, btw): def isGoodEnough(inc:Int,x:Int)=x>inc; def increasePosition(inc:Int,x:Int):Int= if (isGoodEnough(inc,x)) return x+inc; else return x; def increasePositionByOne(x: Int) ={ return increasePosition(1,x); } Now we’ll transform that piece of code into something more Scala-ish 😀 First of all, in Scala Read more…
What is this pattern for? This pattern is used when it’s necessary to isolate the construction of a complex object and at the same time have more than one representation. Featuring: The Client: They want an application with a specific construction. In this case, they want an application written in Read more…
Every computation in Scala is treated like a mathematical function, and the evaluation of these functions is made following the Substitution Model which has many strategies, two of them are: Call-by-value Strategy This is the strategy by default, the arguments of the function are evaluated before the function itself, like Read more…
I could write a little paragraph about how much I like Scala and maybe use my poor evangelist skills to convince you to use it instead of your language preference. But no, I think that you are doing great with your preferences, whatever they are. And also, I’m going straight Read more…