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
In Go, functions are first-class, typed programming elements. A declared function literal always has a type and a value (the defined function itself) and can optionally be bound to a named identifier. Because ...
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