What is banana problem?
A banana problem in IT describes an algorithm, piece of code, or technology artifact that has vague delimiters or problems with definition or scope. A banana problem can be similar to a fencing bug, described as a 'problem with the discrete equivalent of a constraint'.
With a banana problem, it's difficult to tell where a program should stop. The phrase comes from a joke about the word banana in which a child says, 'I know how to spell banana, but I don't know when to stop.' Likewise, people or machines make mistakes in a conventional fence post. Estimating where a limit is. Programs with iterative loops can be prone to fencepost errors, where a designer or developer miscalculates and causes a code problem. The term 'banana problem' can be used loosely to refer to a number of similar design problems.