The defer statement in Go delays the execution of a function until the surrounding function finishes, useful for cleanup actions like closing resources. There are three types of defer in Go: heap-allocated, stack-allocated, and open-coded, each with different performance characteristics. Multiple defers are executed in a last-in-first-out order, and recover can regain control after a panic within a deferred function. Deferred function arguments are evaluated immediately, which can lead to complexities if not handled properly. Proper error handling with defer includes capturing defer return values.
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What is defer?Defers are stackedDefer, Panic and RecoverDefer arguments, including receiver are immediately evaluatedDefer with error handlingDefer types: Heap-allocated, Stack-allocated and Open-coded deferWho We AreRead moreSort: