Which of the following is the correct syntax to call method foo with argument 42 using send on object bar?

easy📝 Syntax Q3 of 15

Ruby - Metaprogramming Fundamentals

Which of the following is the correct syntax to call method foo with argument 42 using send on object bar?

Abar.send(:foo 42)

Bbar.send(:foo, 42)

Cbar.send('foo' 42)

Dbar.send(foo, 42)

Step-by-Step Solution

Solution:

Step 1: Understand send syntax with arguments
send takes method name as symbol or string, then arguments separated by commas.
Step 2: Check each option
bar.send(:foo, 42) uses correct symbol and comma. Others miss quotes, colon, or commas causing syntax errors.
Final Answer:
bar.send(:foo, 42) -> Option B
Quick Check:
send syntax = send(:method, args...) [OK]

Quick Trick: Separate method name and arguments with commas in send [OK]

Common Mistakes:

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