B4J Question Call a function but not assigning the returned value to a variable

Sub Process_Globals
    Private AnotherValue As Int
End Sub

Sub AppStart (Args() As String)
    Log(AnotherValue)
    MyMap
    Log(AnotherValue)
    Log(MyMap)
    Log("value:" & MyMap.Get("key"))
    AnotherValue = 7
    Log(MyMap)
    Log("value:" & MyMap.Get("key2"))
    Dim value As Int = MyMap.Get("key2")
    Log(value)
End Sub

Sub MyMap As Map
    If AnotherValue = 7 Then Return CreateMap("key2": 10)
    AnotherValue = 6
    Return CreateMap("key": AnotherValue)
End Sub

Waiting for debugger to connect...
Program started.
0
6
(MyMap) {key=6}
value:6
(MyMap) {key2=10}
value:10
10
Program terminated (StartMessageLoop was not called).

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PaulMeuris said:

In the first example the word MyMap is ambiguous because it refers to a subroutine name and to a name of a map.
This is a little bit confusing.

B4X:

Sub Process_Globals
    Private AnotherValue As Int
End Sub

Sub AppStart (Args() As String)
    Log(AnotherValue)
    MyMap
    Log(AnotherValue)
    Log(MyMap)
    Log("value:" & MyMap.Get("key"))
    AnotherValue = 7
    Log(MyMap)
    Log("value:" & MyMap.Get("key2"))
    Dim value As Int = MyMap.Get("key2")
    Log(value)
End Sub

Sub MyMap As Map
    If AnotherValue = 7 Then Return CreateMap("key2": 10)
    AnotherValue = 6
    Return CreateMap("key": AnotherValue)
End Sub

In the second example the method name DB.Find(id) can not be used as a map name, i think.
But why do you want to use a return value in that method if you are not going to use it later?

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aeric said:

Yes, my point is can I let the value "hanging" or just keep inside a memory without consume it?

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