Scala Language Higher Order Function High Order Functions(Function as Parameter)
Example
A higher-order function, as opposed to a first-order function, can have one of three forms:
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One or more of its parameters is a function, and it returns some value.
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It returns a function, but none of its parameters is a function.
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Both of the above: One or more of its parameters is a function, and it returns a function.
object HOF { def main(args: Array[String]) { val list = List(("Srini","E"),("Subash","R"),("Ranjith","RK"),("Vicky","s"),("Sudhar","s")) //HOF val fullNameList= list.map(n => getFullName(n._1, n._2)) } def getFullName(firstName: String, lastName: String): String = firstName + "." + lastName }
Here the map function takes a getFullName(n._1,n._2) function as a parameter. This is called HOF (Higher order function).
