# Immediately-invoked Function Expression

## c++

```cpp
#include <iostream>

int main() {
  [](int v) {
    std::cout << v << std::endl;
  }(42);
  
  return 0;
}
```

## go

```go
package main

import "fmt"

func main() {
  func (v int) {
    fmt.Println(v)
  }(42);
}
```

## javascript

```javascript
(function (v) {
  console.log(v);
})(42);
```