Many years ago, I took part in the development of a taxi-hailing mobile app that is still widely used today. I don’t know what kind of code they’re running now, but in those early days, the driver assignment code –if I remember it correctly– was similar in spirit to the grossly simplified example that follows. There are five levels of nested if statements in less than 30 lines of code. It doesn’t look so bad, some might say, but it’s not difficult to imagine how complicated this code can become with just a few more checks…
To each their own. Some won’t like the repeating code and some won’t like the distributed logic (i.e. you have to read every if and if-else statement to know when the else takes effect). I think the use of booleans like
isDriverClosemakes the repeated logic less messy and reduces inefficiency (if the compiler didn’t optimize for you).