Which of the following method definitions correctly uses a hash as named parameters with a default empty hash?

easy📝 Syntax Q3 of 15

Ruby - Hashes

Adef greet(options = []) "Hello, #{options[:name]}!" end

Bdef greet(name: {}) "Hello, #{name}!" end

Cdef greet(options) "Hello, #{options.name}!" end

Ddef greet(options = {}) "Hello, #{options[:name]}!" end

Step-by-Step Solution

Solution:

Step 1: Identify correct default parameter type
Using options = {} sets default to an empty hash, allowing optional named parameters.
Step 2: Check correct key access syntax
Accessing options[:name] is correct for hash keys.
Final Answer:
def greet(options = {})\n "Hello, #{options[:name]}!"\nend -> Option D
Quick Check:
Default empty hash = options = {} [OK]

Quick Trick: Default hash parameter is options = {} [OK]

Common Mistakes:

MISTAKES

Master "Hashes" in Ruby

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More Ruby Quizzes