Ruby - Arrays
Which method creates an array with 5 nil elements in Ruby?
Which method creates an array with 5 nil elements in Ruby?
easy📝 Conceptual Q1 of 15
Step-by-Step Solution
Solution:
Step 1: Understand Array.new behavior
Array.new(5) creates an array with 5 elements, all set to nil by default.Step 2: Check other options
Array[5] creates an array with one element 5, [5].new and Array.create(5) are invalid syntax.Final Answer:
Array.new(5) -> Option AQuick Check:
Array creation with nil elements = Array.new(5) [OK]
Quick Trick: Use Array.new(size) for nil-filled arrays [OK]
Common Mistakes:
- Using Array[5] creates single element array
- Trying invalid methods like Array.create
- Confusing array literal with constructor
Master "Arrays" in Ruby
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