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What is the purpose of an argument label in a Swift function?

easy📝 Conceptual Q11 of 15
Swift - Functions
What is the purpose of an argument label in a Swift function?
ATo store the return value of the function
BTo define the variable type inside the function
CTo clarify the meaning of each argument when calling the function
DTo create a new function inside another function
Step-by-Step Solution
Solution:

  1. Step 1: Understand argument labels

    Argument labels are used outside the function when calling it to make the call clearer.

  2. Step 2: Differentiate from parameter names

    Parameter names are used inside the function, but argument labels help the caller understand what each value means.

  3. Final Answer:

    To clarify the meaning of each argument when calling the function -> Option C

  4. Quick Check:

    Argument label = clarify call [OK]
Quick Trick: Argument labels clarify calls, parameter names work inside [OK]
Common Mistakes:
  • Confusing argument labels with parameter names
  • Thinking argument labels define variable types
  • Assuming argument labels store return values

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