[Solved] You want to write a method that returns early if a user is not authorized, otherwise... Which guard clause is best?def process(user, data) # guard clause here "Processing data for #{user}" end | Ruby

Ruby - Control Flow

You want to write a method that returns early if a user is not authorized, otherwise processes data. Which guard clause is best?

def process(user, data)
  # guard clause here
  "Processing data for #{user}"
end

Areturn "Unauthorized" if user.authorized?

Bif user.authorized? then return "Unauthorized" end

Creturn "Unauthorized" if !user.authorized? == false

Dreturn "Unauthorized" unless user.authorized?

Step-by-Step Solution

Solution:

Step 1: Understand authorization logic
We want to return "Unauthorized" if user is NOT authorized.
Step 2: Check guard clause options
return "Unauthorized" unless user.authorized? uses 'return "Unauthorized" unless user.authorized?' which means return if user is not authorized, correct logic.
Final Answer:
return "Unauthorized" unless user.authorized? -> Option D
Quick Check:
Use 'unless' to return early on negative condition [OK]

Quick Trick: Use 'return ... unless condition' for negative guard clauses [OK]

Common Mistakes:

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You want to write a method that returns early if a user is not authorized, otherwise processes data. Which guard clause is best?