Golang Defer: A Practical Guide with 5 Use Cases

defer in Go allows postponing the execution of a function until the surrounding function returns. It’s a powerful mechanism often used for resource management, cleanup, or ensuring specific functions run at the end of a scope. Functions deferred within a scope are executed in reverse order, following a Last-In-First-Out (LIFO) approach. This construct aids in maintaining clean, readable code by separating setup and teardown actions, improving code clarity, and ensuring critical tasks execute before the function exits, contributing to robust and more manageable Go programs.