class - Swift For In Loop Iterating Through an Array of Custom Classes Doesn't Work -

i working project , have come across error when iterating through in loop this:

class customclass {      var namenum : int { didset { self.name = "customclass \(namenum)" } }     var name : string      init() {         namenum = 0         self.name = "customclass \(namenum)"     } }  var myarray : [customclass] = [customclass](repeating: customclass(), count: 5)  _class in myarray.indices {     myarray[_class].namenum = _class }  print("\n") _class in myarray.indices {     print("item \(_class): \(myarray[_class].name)") } 

i following output:

item 0: customclass 4

item 1: customclass 4

item 2: customclass 4

item 3: customclass 4

item 4: customclass 4

this not make sense me thought following output instead:

item 0: customclass 0

item 1: customclass 1

item 2: customclass 2

item 3: customclass 3

item 4: customclass 4

any why doesn't work or how go fixing appreciated, thanks!

you should change array initialization

var myarray : [customclass] = (0..<5).map { _ in customclass() } 

from

var myarray : [customclass] = [customclass](repeating: customclass(), count: 5) 

complete code:

class customclass {      var namenum : int { didset { self.name = "customclass \(namenum)" } }     var name : string      init() {         namenum = 0         self.name = "customclass \(namenum)"     } }  var myarray : [customclass] = (0..<5).map { _ in customclass() }  _class in myarray.indices {     myarray[_class].namenum = _class }  print("\n") _class in myarray.indices {     print("item \(_class): \(myarray[_class].name)") } 

the reason code, creates instance of customclass , adds @ 5 indexes of array expecting 5 different instance of customclass. if same instance added 5 times, of them have last set value in case 4.

item 0: customclass 0

item 1: customclass 1

item 2: customclass 2

item 3: customclass 3

item 4: customclass 4