g()('al')

goal.js

// Yet another g()('al') solution
// https://github.com/eatnumber1/goal

var g = function (str, calls) {

    calls = calls || 0;

    if (str) {
        return 'g' + Array(calls + 1).join('o') + str;
    }

    return function (str) {
        return g(str, calls + 1);
    };
}

console.log(g('al'));
console.log(g()('al'));
console.log(g()()()('al'));
console.log(g()()()()()()()()()()()('al'));