Variadic Functions
Explore how to implement and utilize variadic functions in Go, enabling you to write flexible functions that accept a variable number of arguments. Understand the use of the pack operator, how to handle slices and interface conversions, and see example code demonstrating these concepts in practice.
We'll cover the following...
Variadic functions are functions that can accept a variable number of parameters—we already know about fmt.Println() and append(), which are both variadic functions that are widely used. In fact, most functions found in the fmt package are variadic.
General ideas and rules
The general ideas and rules behind variadic functions are as follows:
Variadic functions use the pack operator, which consists of a
..., followed by a data type. So, for a variadic function to accept a variable number ofintvalues, the pack operator should be...int. ...