Ruby - String Operations
Which of the following is the best way to add "Ruby" to the string variable
lang without creating a new string?Which of the following is the best way to add "Ruby" to the string variable lang without creating a new string?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify methods that modify the original string
The<<operator appends to the original string without creating a new one.Step 2: Compare options
lang = lang + "Ruby" creates a new string, lang += "Ruby" also creates a new string, lang.append("Ruby") does not exist.<<is the simplest and most common for this purpose.Final Answer:
lang << "Ruby" -> Option DQuick Check:
Use << to append in place [OK]
Quick Trick: << appends directly, no new string made [OK]
Common Mistakes:
- Using + which creates new string
- Using += which creates new string
- Assuming append is a Ruby method
Master "String Operations" in Ruby
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