Run-time Exceptions and Panic
This lesson explains runtime errors in detail and how a program responds to them.
We'll cover the following...
Run-time panic
When an execution errors occur, such as attempting to index an array out of bounds or a type assertion failing, the Go runtime triggers a run-time panic with a value of the interface type runtime.Error, and the program crashes with a message of the error. This value has a RuntimeError() method, to distinguish it from a normal error.
Panic can also be initiated from code directly: when the error-condition (which we are testing in the code) is so severe and unrecoverable that the program ...