Download Scala Tutorial (PDF Version) - Tutorials Point

}
logWithDateBound("message1" )
logWithDateBound("message2" )
logWithDateBound("message3" )
}
def log(date: Date, message: String) = {
println(date + "----" + message)
}
When the above code is compiled and executed, it produces the following result:
C:/>scalac Test.scala
C:/>scala Test
Thu Aug 18 01:41:07 GST 2011----message1
Thu Aug 18 01:41:08 GST 2011----message2
Thu Aug 18 01:41:08 GST 2011----message3
C:/>
Currying Functions
Currying transforms a function that takes multiple parameters into a chain of functions, each taking a single
parameter. Curried functions are defined with multiple parameter lists, as follows:
def strcat(s1: String)(s2: String) = s1 + s2
Alternatively, you can also use the following syntax to define a curried function:
def strcat(s1: String) = (s2: String) => s1 + s2
Following is the syntax to call a curried function:
strcat("foo")("bar")
You can define more than two parameters on a curried function based on your requirement. Let us take a complete
example to show currying concept:
object Test {
def main(args: Array[String]) {
val str1:String = "Hello, "
val str2:String = "Scala!"
println( "str1 + str2 = " + strcat(str1)(str2) )
}
}
def strcat(s1: String)(s2: String) = {
s1 + s2
}
When the above code is compiled and executed, it produces the following result:
C:/>scalac Test.scala
C:/>scala Test
str1 + str2 = Hello, Scala!
C:/>
TUTORIALS POINT
Simply Easy Learning