# Any nesting level in JavaScript

There may be also such function calls: `func()()()` and `func()()()` - and so on ad infinitum.

To do this, you need the inner function to also return a function, that one - another one, and so on. Here is an example:

`function func() { return function() { return function() { return '!'; }; }; } console.log( func()()() ); // shows '!'`

Make the function `func` that, when called like this: `func()()()()()`, will return `'!'`.

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