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What is the main purpose of using guard statements in Swift?

easy📝 Conceptual Q11 of 15
Swift - Control Flow
What is the main purpose of using guard statements in Swift?
ATo define functions with multiple parameters
BTo create loops that run a fixed number of times
CTo check a condition and exit early if it is false
DTo declare constants and variables
Step-by-Step Solution
Solution:

  1. Step 1: Understand the role of guard

    guard is used to check a condition and exit the current scope early if the condition is false.

  2. Step 2: Compare with other options

    Options A, B, and C describe functions, loops, and variable declarations, which are unrelated to guard.

  3. Final Answer:

    To check a condition and exit early if it is false -> Option C

  4. Quick Check:

    Guard = early exit on false condition [OK]
Quick Trick: Guard exits early if condition fails, keeping code clean [OK]
Common Mistakes:
  • Confusing guard with if statements
  • Thinking guard creates loops
  • Using guard to declare variables

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