Which Ruby method best demonstrates dynamic typing by accepting any argument and returning its string form?

hard📝 Application Q8 of 15

Ruby - Variables and Data Types

Adef to_string(value) value.convert_to_string end

Bdef to_string(value: String) value end

Cdef to_string(value) value.to_str end

Ddef to_string(value) value.to_s end

Step-by-Step Solution

Solution:

Step 1: Understand dynamic typing
Method should accept any type without type restrictions.
Step 2: Analyze options
def to_string(value) value.to_s end uses value.to_s which works for all Ruby objects.
Step 3: Identify incorrect options
def to_string(value: String) value end uses type annotation (not Ruby syntax), C and D call methods not guaranteed on all objects.
Final Answer:
def to_string(value) value.to_s end -> Option D
Quick Check:
to_s works on all Ruby objects [OK]

Quick Trick: Use to_s to convert any object to string [OK]

Common Mistakes:

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