You want to build a large text by adding many small strings in a loop. Which approach is best in C#?

hard🚀 Application Q8 of 15

C Sharp (C#) - Strings and StringBuilder

AUse string concatenation with + inside the loop

BUse StringBuilder to append strings inside the loop

CUse char arrays and convert to string after loop

DUse Console.WriteLine inside the loop to build string

Step-by-Step Solution

Solution:

Step 1: Understand performance of string concatenation in loops
Concatenating strings repeatedly creates many temporary strings, slowing performance.
Step 2: Use StringBuilder for efficient appending
StringBuilder modifies a buffer internally, avoiding many temporary objects.
Final Answer:
Use StringBuilder to append strings inside the loop -> Option B
Quick Check:
StringBuilder is best for many string additions [OK]

Quick Trick: For many string adds, prefer StringBuilder over + operator [OK]

Common Mistakes:

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