openssl ecparam -name secp256k1 -genkey -noout -out private.pem
openssl ec -in private.pem -out public.pem -pubout 

var privateKeyPEM = '-----BEGIN RSA PRIVATE KEY--....Q=-----END RSA PRIVATE KEY-----';
var publicKeyPEM = '-----BEGIN PUBLIC KEY-----MI...AB-----END PUBLIC KEY-----';
var publicKey = forge.pki.publicKeyFromPem(publicKeyPEM);
var privateKey = forge.pki.privateKeyFromPem(privateKeyPEM);
 
var encryptedText = publicKey.encrypt('password');
console.log(encryptedText);
var decryptedText = privateKey.decrypt(encryptedText);
console.log(decryptedText);
 

var variableImportante = {...};
 
var b = require('b.js');
b.funct(23);
 

module.exports = {
    funct: (arg) => {//como acceder a variableImportante desde aqui sin pasarla como argumento a la funcion funct}
}

static enum menuResult { Nothing, Play, Instruction, About, Exit };

class mainMenu{
public:
	static enum menuResult { Nothing, Play, Instruction, About, Exit };
	static class menuItem{
	public:
		menuItem(char * name = "");
		menuItem(char * name, mainMenu::menuResult action);
		char * name;
		mainMenu::menuResult action;
		sf::Rect<int> rect;
		int fontSize = 24;
		void draw(sf::RenderWindow & window);
 
		static mainMenu * mainMenuPointer; // problem
	private:
		bool created = false;
		// draw items
		sf::Text text;
		sf::RectangleShape outline;
	};
 
	std::vector<menuItem> items;
 
	sf::Font font;
	void drawItems(sf::RenderWindow & window);
	//menuResult handleClick();
};