Ruby - String Operations
What will this code print?
str = "abcdef" puts str[-3, 2]
What will this code print?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand negative start index
str[-3, 2] starts 3 characters from the end, which is index 3 ('d').Step 2: Extract 2 characters from index 3
Characters at index 3 and 4 are 'd' and 'e'.Final Answer:
de -> Option CQuick Check:
Negative index counts from end, length slices substring [OK]
Quick Trick: Negative start index counts from string end [OK]
Common Mistakes:
- Starting at wrong index for negative value
- Expecting 'ef' instead of 'de'
- Thinking negative index causes error
Master "String Operations" in Ruby
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