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Custom Higher Order Function Filter Even Number

An Any and AnyObject Difference

Custom Higher Order Function



 if an Any Declare 

 let anyValues: [Any] = [1, "two", 3, "four", ["name": "praveen"]]

 anyValues.forEach { (anyValue) in

    switch anyValue {


    case is Int:

        print("\(anyValue) is an Int!")

    case is String:

        print("\(anyValue) is String!")

    case is [String: Any]:

        print("\(anyValue) is Discnary!")


        print("\(anyValue) is de!")




Output => 

 1 is an Int!

 two is String!

 3 is an Int!

 four is String!

 ["name": "praveen"] is Discnary!

 if an AnyObject Declare 

let anyValues: [AnyObject] = [1, "two", 3, "four", ["name": "praveen"]]

Error==> Type of expression is ambiguous without more context

Custom Higher Order Function Filter Even Number 

 func coustomFilterNumber<T>(_ inputArray: [T], _ condition: (T) -> Int)-> [T]{


    var result = [T]()


    for element in inputArray{

        if (condition(element) != 0){





    return result



 let nums = [2, 5, 10, 4, 6, 7, 11]

 let num = coustomFilterNumber(nums, {$0 % 2})


 Output -- > [5, 7, 11]

  Custom function to apply multiple conditions?

struct Person {

    let name: String

    let age: Int

    let isEmp: Bool


func EmpFilter(_ persons: [Person], _ filters: [(Person) -> Bool]) -> [Person]{


    var result: [Person] = []


    for person in persons{

        var shouldInc = true


        for filter in filters{

            if !filter(person){

                shouldInc = false




        if shouldInc{




    return result


let people = [

    Person(name: "Alexander", age: 28, isEmp: true),

    Person(name: "Bob", age: 22, isEmp: false),

    Person(name: "Catalina", age: 35, isEmp: true),

    Person(name: "Diana", age: 40, isEmp: false),

    Person(name: "Emly", age: 19, isEmp: true)


let filter: [(Person) -> Bool] = [

    {$0.age > 25},


    {$ > 5}


let filterPeson = EmpFilter(people, filter)

for feson in filterPeson{

    print("\(, Age: \(feson.age), Employed: \(feson.isEmp)")



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