How can you modify this method to safely call yield only if a block is given?

hard📝 Application Q8 of 15

Ruby - Blocks, Procs, and Lambdas

How can you modify this method to safely call yield only if a block is given?

def safe_call
  yield
end

Adef safe_call yield unless block_given? end

Bdef safe_call yield(true) end

Cdef safe_call yield() rescue nil end

Ddef safe_call yield if block_given? end

Step-by-Step Solution

Solution:

Step 1: Understand how to check for block presence
Ruby provides block_given? to check if a block was passed.
Step 2: Use conditional yield
Calling yield only if block_given? prevents errors when no block is given.
Final Answer:
def safe_call yield if block_given? end -> Option D
Quick Check:
Use block_given? to safely yield [OK]

Quick Trick: Use block_given? before yield to avoid errors [OK]

Common Mistakes:

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