So far, we have not had to be too concerned about what happens in a function after we throw an error. There are times when we will need to perform a certain action before exiting a function, regardless of if we threw an error or not.
An important part to remember about throwing errors is that the execution of the current scope exits. This is easy to think about for functions if you think of it as just a call to return. Any code after the throw will not be executed. It is a little less intuitive within do-catch blocks. A do-catch can have multiple calls to functions that may throw errors, but as soon as a function throws an error, the execution will jump to the first catch block that matches the error:
do {
try function1()
try function2()
try function3()
}
catch {
print("Error")
}Here, if function1 throws an error, function2 and function3 will not be called. If function1 does not throw but function2 does, then...