Does Go Support Lambda Expressions?

Lambda Expressions in Go

Q: Do you know if Go supports lambda expressions?

A: Yes, Go does support lambda expressions, also known as anonymous functions. They are an anonymous function that can be defined and used without a formal declaration. In Go, lambda expressions are defined using the syntax:

func (parameters) (return type) { code }

Here's an example:

package main

import fmt "fmt"

type Stringy func() string

func foo() string {
    return "Stringy function"
}

func takesAFunction(foo Stringy) {
    fmt.Printf("takesAFunction: %v\n", foo())
}

func returnsAFunction() Stringy {
    return func() string {
        fmt.Printf("Inner stringy function\n")
        return "bar" // have to return a string to be stringy
    }
}

func main() {
    takesAFunction(foo)
    var f Stringy = returnsAFunction()
    f()
    var baz Stringy = func() string {
        return "anonymous stringy\n"
    }
    fmt.Printf(baz())
}

In this example, foo() is a standard named function, and the unnamed function assigned to f and baz are examples of lambda expressions.

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