functionerror
Function error is a general term for a failure that occurs during the execution of a function. In many programming languages, such failures are represented as exceptions, error objects, or rejected promises, rather than as a normal return value. The term "functionerror" is not a formal language construct but an informal label used to describe errors raised within a function's body.
Common causes include invalid or unexpected input (such as null values or incorrect types), unavailable resources
Handling function errors depends on the language and paradigm. Synchronous languages typically use try-catch blocks to
Propagation and debugging: Uncaught function errors propagate up the call stack, potentially crashing the program or
Best practices include validating inputs early, keeping functions small and predictable, returning descriptive error information, and