Which of the following Ruby code snippets correctly uses an iterator to print each element of the array arr?

easy📝 Syntax Q3 of 15

Ruby - Loops and Iteration

Which of the following Ruby code snippets correctly uses an iterator to print each element of the array arr?

Aarr.loop { |element| puts element }

Bfor element in arr puts element end

Carr.each { |element| puts element }

Darr.each do element puts element end

Step-by-Step Solution

Solution:

Step 1: Review Ruby iterator syntax
The correct syntax for each uses a block with a pipe-delimited parameter.
Step 2: Analyze options
arr.each { |element| puts element } correctly uses arr.each { |element| puts element }. for element in arr puts element end uses a loop, not an iterator. arr.loop { |element| puts element } uses a non-existent method loop on array. arr.each do element puts element end misses the pipe delimiters in the block.
Final Answer:
arr.each { |element| puts element } -> Option C
Quick Check:
Correct iterator syntax requires pipes around block parameters [OK]

Quick Trick: Use pipes | | around block variables in iterators [OK]

Common Mistakes:

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