What is the value of an anonymous unattached block in C#?

Question

In C# you can make a block inside of a method that is not attached to any other statement.

    public void TestMethod()
    {
        {
            string x          


        

Answer 1

It's a by-product of a the parser rule that statement is either a simple statement or a block. i.e. a block can be used wherever a single statement can.

e.g.

if (someCondition)
 SimpleStatement();

if (SomeCondition)
{
   BlockOfStatements();
}

Others have pointed out that variable declarations are in scope until the end of the containing block. It's good for temporary vars to have a short scope, but I've never had to use a block on it's own to limit the scope of a variable. Sometimes you use a block underneath a "using" statement for that.

So generally it's not valuable.