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Consider using 'last'
Garmin-Kotlin-Academy/Practice1/scratch.kts
Line 142 in 9de3ab7
Treating 'expected' situations with Exceptions
In the described context, it is an expected behaviour that the user might have insufficient funds. I would recommend treating similar situations with return values. Exceptions should be used for corner cases or other less frequent situations.
Please write a version without a for loop
Factorial
Firstly, you can make the definition more compact:
fun factorial(num: Int) = if (num > 0) (2..num).fold(1, Int::times) else "Enter a positive number"
Secondly, since this is a factorial function on 'Int', one would expect and 'Int'/'Long' result rather than 'Any'. In this situation, I think it is OK to trow an IllegalArgumentException for invalid parameters.
Sorting has an unnecessary overhead. Consider using 'all' or 'none'
Garmin-Kotlin-Academy/Practice1/scratch.kts
Line 124 in 9de3ab7
Make 'when' an expression
You can extract 'print' in front to make the code more concise
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