[ES5][nodejs] g()()()()('al') -> "gooooal"

gooal.js

// [ES5][nodejs] g()()()()('al') -> "gooooal"                                   
// see: https://github.com/eatnumber1/goal                                      
var g = function g(al) {
    "use strict";
    var go = this ? this : "g";
    return al ? go + al: g.bind(go + "o");
};

console.log(g('al'));         // => "gal"                                       
console.log(g()('al'));       // => "goal"                                      
console.log(g()()('al'));     // => "gooal"                                     
console.log(g()()()()('al')); // => "gooooal"