Merge pull request scala-exercises#44 from 47deg/vejeta-patch-partialfunctions.json

Update partialfunctions.json

Author: Rafa Paradela

app/json/partialfunctions.json

@@ -3,7 +3,7 @@
   "modules": [
     {
       "preparagraph": "A partial function is a `trait` that when implemented can be used as building blocks to determine a solution.  The trait PartialFunction requires that the method `isDefinedAt` and `apply` be implemented.",
-      "code": "val doubleEvens: PartialFunction[Int, Int] = new PartialFunction[Int, Int] {\n  //States that this partial function will take on the task\n  def isDefinedAt(x: Int) = x % 2 == 0\n\n  //What we do if this does partial function matches\n  def apply(v1: Int) = v1 * 2\n}\n\nval tripleOdds: PartialFunction[Int, Int] = new PartialFunction[Int, Int] {\n  def isDefinedAt(x: Int) = x % 2 != 0\n\n  def apply(v1: Int) = v1 * 3\n}\n\nval whatToDo = doubleEvens orElse tripleOdds //Here we chain the partial functions together\n\nwhatToDo(3) should be(__)\nwhatToDo(4) should be(__)",
+      "code": "val doubleEvens: PartialFunction[Int, Int] = new PartialFunction[Int, Int] {\n  //States that this partial function will take on the task\n  def isDefinedAt(x: Int) = x % 2 == 0\n\n  //What we do if this partial function matches\n  def apply(v1: Int) = v1 * 2\n}\n\nval tripleOdds: PartialFunction[Int, Int] = new PartialFunction[Int, Int] {\n  def isDefinedAt(x: Int) = x % 2 != 0\n\n  def apply(v1: Int) = v1 * 3\n}\n\nval whatToDo = doubleEvens orElse tripleOdds //Here we chain the partial functions together\n\nwhatToDo(3) should be(__)\nwhatToDo(4) should be(__)",
       "solutions": [
         "9",
         "8"
@@ -12,7 +12,7 @@
     },
     {
       "preparagraph": "Case statements are a quick way to create partial functions. When you create a case statement, the apply and `isDefinedAt` is created for you.",
-      "code": "//The case statements are called case statements with guards\nval doubleEvens: PartialFunction[Int, Int] = {\n  case x: Int if (x % 2) == 0 => x * 2\n}\nval tripleOdds: PartialFunction[Int, Int] = {\n  case x: Int if (x % 2) != 0 => x * 3\n}\n\nval whatToDo = doubleEvens orElse tripleOdds //Here we chain the partial functions together\nwhatToDo(3) should be(__)\nwhatToDo(4) should be(__)",
+      "code": "//These case statements are called case statements with guards\nval doubleEvens: PartialFunction[Int, Int] = {\n  case x: Int if (x % 2) == 0 => x * 2\n}\nval tripleOdds: PartialFunction[Int, Int] = {\n  case x: Int if (x % 2) != 0 => x * 3\n}\n\nval whatToDo = doubleEvens orElse tripleOdds //Here we chain the partial functions together\nwhatToDo(3) should be(__)\nwhatToDo(4) should be(__)",
       "solutions": [
         "9",
         "8"
@@ -38,4 +38,4 @@
       "postparagraph": ""
     }
   ]
-}
+}