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vb.netoptional-variables

VB.NET := Operator

What does the following mean?

Class.Function(variable := 1 + 1)

What is this operator called, and what does it do?

Solution

  • It is used to assign optional variables, without assigning the previous ones.

    sub test(optional a as string = "", optional b as string = "")
   msgbox(a & b)
end sub

    you can now do

    test(b:= "blaat")
'in stead of
test("", "blaat")