In a member expansion scenario, where would you place the expansion syntax within the expression?

In a member expansion scenario, where would you place the expansion syntax within the expression?

• A. Beginning
• B. Middle
• C. End
• D. Not allowed

Answer: (C)

Expansion syntax acts as a postfix modifier to the member you reference. You must resolve the base member first, then apply the expansion to that resolved result. That’s why putting the expansion syntax at the end is correct: it attaches to the already-evaluated member, expanding it to include its descendants or the specified expanded set. Placing it at the beginning would have nothing to expand yet, and inserting it in the middle would disrupt the normal reading and parsing of the expression. So the end is the proper spot for the expansion to take effect.

Expansion syntax acts as a postfix modifier to the member you reference. You must resolve the base member first, then apply the expansion to that resolved result. That’s why putting the expansion syntax at the end is correct: it attaches to the already-evaluated member, expanding it to include its descendants or the specified expanded set. Placing it at the beginning would have nothing to expand yet, and inserting it in the middle would disrupt the normal reading and parsing of the expression. So the end is the proper spot for the expansion to take effect.