Ruby - Arrays
Which of the following is the correct syntax to create an array with 3 elements, all initialized to zero?
Which of the following is the correct syntax to create an array with 3 elements, all initialized to zero?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall Array.new syntax
In Ruby,Array.new(size, default_value)creates an array with given size and fills it with the default value.Step 2: Check each option
Array.new(3, 0)correctly creates [0, 0, 0].Array.new(0, 3)creates an empty array since size is first argument. Options C and D are invalid syntax.Final Answer:
Array.new(3, 0) -> Option AQuick Check:
Array.new(3, 0) = [0, 0, 0] [OK]
Quick Trick: Use Array.new(size, value) to create arrays with default values [OK]
Common Mistakes:
- Confusing Array.new arguments order
- Using invalid syntax like Array(0, 3)
- Trying JavaScript style new Array()
Master "Arrays" in Ruby
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Ruby Quizzes