How Dictionary delegates can replace if-else chains for cleaner C# code

A C# developer demonstrated how replacing repetitive if-statement blocks with a Dictionary delegate pattern leads to more maintainable and scalable code. The original approach used multiple if statements to return different Package objects based on coupon codes, which becomes unwieldy as the number of cases grows. Switching to a Dictionary with coupon codes as keys offers O(1) lookup time, making it significantly faster than searching through a list or array. The pattern was further extended to support delegate functions as dictionary values, allowing dynamic logic such as seasonal price adjustments to be handled cleanly. The technique highlights a practical way to improve code readability and performance in everyday C# development scenarios.