Ruby - Hashes
Which of the following is the correct syntax to define a method using a hash for named parameters in Ruby?
Which of the following is the correct syntax to define a method using a hash for named parameters in Ruby?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Identify correct method parameter syntax
In Ruby, to accept named parameters as a hash, you define the method with a parameter defaulting to an empty hash, likeoptions = {}.Step 2: Check each option
def greet(name, options = {}) usesoptions = {}correctly. def greet(name: options = {}) uses invalid syntax. def greet(options: {}) tries to use keyword arguments incorrectly. def greet(options = []) uses an array instead of a hash.Final Answer:
def greet(name, options = {}) -> Option BQuick Check:
Hash parameter = options = {} [OK]
Quick Trick: Use options = {} to accept named parameters as a hash [OK]
Common Mistakes:
- Using square brackets [] instead of curly braces {}
- Confusing keyword arguments with hash parameters
- Incorrect syntax like name: options = {}
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