diff options
| -rw-r--r-- | scala.html.markdown | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/scala.html.markdown b/scala.html.markdown index 5eb94986..e541f4b3 100644 --- a/scala.html.markdown +++ b/scala.html.markdown @@ -253,16 +253,20 @@ weirdSum(2, 4) // => 16 // def that surrounds it. // WARNING: Using return in Scala is error-prone and should be avoided. // It has no effect on anonymous functions. For example: -def foo(x: Int): Int = { - val anonFunc: Int => Int = { z => +def addTenButMaybeTwelve(x: Int): Int = { + val anonMaybeAddTwo: Int => Int = { z => if (z > 5) - return z // This line makes z the return value of foo! + return z // This line makes z the return value of addTenButMaybeTwelve! else z + 2 // This line is the return value of anonFunc } - anonFunc(x) // This line is the return value of foo + anonMaybeAddTwo(x) + 10 // This line is the return value of foo } +addTenButMaybeTwelve(2) // Returns 14 as expected: 2 <= 5, adds 12 +addTenButMaybeTwelve(7) // Returns 7: 7 > 5, return value set to z, so + // last line doesn't get called and 10 is not added + ///////////////////////////////////////////////// // 3. Flow Control |