Ruby - String Operations
How can you reverse the substring from index 2 to 5 in
str = "developer" and replace it back into the string?How can you reverse the substring from index 2 to 5 in str = "developer" and replace it back into the string?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Identify substring from index 2 to 5
str[2..5] extracts characters at indices 2,3,4,5.Step 2: Reverse the substring and assign back
str[2..5] = str[2..5].reverse replaces that part with its reverse.Final Answer:
str[2..5] = str[2..5].reverse -> Option DQuick Check:
Range slice + reverse + assignment = substring reversed in place [OK]
Quick Trick: Use range slice and assign reversed substring [OK]
Common Mistakes:
- Using incorrect range order
- Trying to reverse with invalid range
- Assigning reversed substring without slicing
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