Question

I have the following code:

if (question.DetailsJSON != null) {
   var details = JSON.FromJSONString<List<Question.Detail>>(question.DetailsJSON);
}

This works but outside of the block the details is not available.

Without pre-declaring the details variable is there a way that I could do this if test and still have details available once outside of the if ?

Answer 1

You can combine the declaration and initialization, and use a conditional operator to avoid introducing a new scope with the if statement:

var details = question.DetailsJSON != null
?   JSON.FromJSONString<List<Question.Detail>>(question.DetailsJSON)
:   null;