VB.NET := Operator

Question

What does the following mean? ``` Class.Function(variable := 1 + 1) ``` What is this operator called, and what does it do?

Accepted Answer

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")
```

Solution