Difference between method and function in Scala

Question

I read Scala Functions (part of Another tour of Scala). In that post he stated:

Methods and functions are not the same thing

Answer 1

One big practical difference between a method and a function is what return means. return only ever returns from a method. For example:

scala> val f = () => { return "test" }
:4: error: return outside method definition
       val f = () => { return "test" }
                       ^

Returning from a function defined in a method does a non-local return:

scala> def f: String = {                 
     |    val g = () => { return "test" }
     | g()                               
     | "not this"
     | }
f: String

scala> f
res4: String = test

Whereas returning from a local method only returns from that method.

scala> def f2: String = {         
     | def g(): String = { return "test" }
     | g()
     | "is this"
     | }
f2: String

scala> f2
res5: String = is this