#26 Golang Essentials: Understanding Variadic and First-Class Functions
In Golang, functions are first-class citizens. This means that functions in Golang can be treated like any other variable. Specifically, this entails:
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Assigning Functions to Variables: You can assign a function to a variable.
Passing Functions as Arguments: You can pass functions as arguments to other functions.
Returning Functions from Other Functions: You can return functions from other functions.
Function custom type
Closure function
Variadic function