B4J Question Initialising Type Variables

[Chris2]

This is pretty basic I think but I'm just after some clarification on initialising Type variables please.
Given....

Sub Process_Globals
Type myType (str as String, b as Boolean, i as Int)
End Sub

Is the following OK

Dim t as myType = mapMyTypes.Get("type1")    'where the values in mapMyTypes are initialized myTypes

Or do I need to explicitly initialize 't' first with...

Dim t as myType
t.initialize
t= mapMyTypes.Get("type1")   

'OR

Dim t as myType=CreatemyType(...
t= mapMyTypes.Get("type1") 

Public Sub CreatemyType (str As String, b As Boolean, i As Int) As myType
    Dim t1 As myType
    t1.Initialize
    t1.str = str
    t1.b = b
    t1.i = i
    Return t1
End Sub

?

Thanks.

 

[agraham]

Is the following OK

If it works it's OK, and it should work!

 

[EnriqueGonzalez]

It is not only OK. But the correct way, initialize is a burdensome process (to any b4x object), initializing and later assigning an object is creating 2 times in RAM the object.

The GC will eventually delete the first object, but HEAP will grow larger.

 

[Erel]

The initialize and then assign pattern is listed as a "code smell": https://www.b4x.com/android/forum/t...ommon-mistakes-and-other-tips.116651/#content

 

[Chris2]

Thanks everyone.
I was aware that the first option was correct for lists & maps, but for some reason thought that it might be different for custom type variables.
I now know that it is not!