Chapter 5. Functions in Go

One of Go's syntactical tour de force is via its support for higher-order functions as is found in dynamic languages such as Python or Ruby. As we will see in this chapter, a function is also a typed entity with a value that can be assigned to a variable. In this chapter, we are going to explore functions in Go covering the following topics:

• Go functions

• Passing parameter values

• Anonymous functions and closures

• Higher-order functions

• Error signaling handling

• Deferring function calls

• Function panic and recovery