Using Defer, Panic, and Recover
Explore how to use Go's defer keyword to run code at function exit, the panic keyword to handle unrecoverable errors, and recover to catch panics. This lesson guides you through efficient error handling and resource management in Go programming.
We'll cover the following...
Modern programming languages have a need to provide some method of running routines when a section of code ends. This is useful when we need to guarantee a file closure or unlock a mutex. In addition, there are times when a program needs to stop execution and exit. This can be caused by loss of access to a critical resource, a security issue, or another need.
We also require the ability to recover from a premature program exit caused by a package that contains code we do not control. This lesson will cover each of the abilities in Go and their interrelations.
