Ruby - Blocks, Procs, and Lambdas
Which of the following is the correct syntax to get a Method object for the method
greet on object person?Which of the following is the correct syntax to get a Method object for the method greet on object person?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Check argument type for
Themethodmethodmethod expects a symbol representing the method name.Step 2: Validate options
person.method(:greet) uses a symbol:greet, which is correct. person.send(:greet) calls the method directly, returning its result instead of a Method object. person.method(greet) passes an undefined variablegreet, causing error. person.method[b greet] uses brackets, which is invalid syntax.Final Answer:
person.method(:greet) -> Option DQuick Check:
Use symbol argument withmethod[OK]
Quick Trick: Use a symbol like
:greet inside method() [OK]Common Mistakes:
- Confusing
method()withsend() - Using brackets instead of parentheses
- Passing undefined variable instead of symbol
Master "Blocks, Procs, and Lambdas" in Ruby
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Ruby Quizzes