A JavaScript interpreter in Go (golang)

[huan]

https://github.com/robertkrimen/otto

It seems very interesting...

Run JavaScript inside Go!

vm := otto.New()
vm.Run(`
    abc = 2 + 2;
    console.log("The value of abc is " + abc); // 4
`)

Run Go inside JavaScript!

vm.Set("sayHello", func(call otto.FunctionCall) otto.Value {
    fmt.Printf("Hello, %s.\n", call.Argument(0).String())
    return otto.Value{}
})

vm.Set("twoPlus", func(call otto.FunctionCall) otto.Value {
    right, _ := call.Argument(0).ToInteger()
    result, _ := vm.ToValue(2 + right)
    return result
})

result, _ = vm.Run(`
    sayHello("Xyzzy");      // Hello, Xyzzy.
    sayHello();             // Hello, undefined

    result = twoPlus(2.0); // 4
`)