Closures Made Simple With Golang

Closures Made Simple With Golang

Closures Made Simple With Golang In Golang. In Golang, a closure is a function value that references variables outside its own function body. A closure can outlive the scope in which it was created and thus access variables within that scope.

Learn what closures and anonymous functions are with simple and helpful examples

In Golang, a closure is a function value that references variables outside its own function body. A closure can outlive the scope in which it was created and thus access variables within that scope, even though the scope is exited.

This might sound like gibberish, but trust me, it will all make sense by the end of this short article.

Before diving deeper into the world of closures, you need to understand an important concept called anonymous functions.

What Are Anonymous Functions in Go?

An anonymous function is just what it sounds like: a function without a name. It’s as simple as that.

Example

As an example, let’s first create a regular function (that has a name):

func send(message string) {
    fmt.Println(message)
}

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