Ruby - Blocks, Procs, and Lambdas
What will this code print?
my_proc = proc { |x, y| x + y }
puts my_proc.call(3, 4)What will this code print?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Analyze the Proc parameters and operation
The Proc takes two arguments and adds them.Step 2: Add the arguments 3 and 4
3 + 4 equals 7, so the output is 7.Final Answer:
7 -> Option AQuick Check:
Proc sum output = 7 [OK]
Quick Trick: Proc parameters match call arguments for correct output [OK]
Common Mistakes:
- Concatenating numbers as strings
- Expecting argument error incorrectly
- Assuming nil output
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