quizzes.js

// Pop quiz! What gets logged?
var o = {
    [console.log('before')]: 4,

    foo: (function () {
        console.log('nope :(');
        throw 'nope'
    })(),

    [console.log('after')]: 4
};

//--------------\\

(function (){}).name; // ''

var Foo = function () {};
var f = new Foo();
f.constructor.name; // '' or 'Foo'?

//

var Bar = Foo;
var b = new Bar();
b.constructor.name; // '' or 'Foo' or 'Bar'?

//


(function (Foo) {
  return (new Foo).constructor.name;
})( function() {} );

//

// and how about:
var o = {
  Foo: function () {}
};
(new o.Foo).constructor.name;

//--------------\\

// Pop quiz: What'll this do?
var cull = Object.create(null);
var obj = {};
obj[cull] = 4;

//--------------\\

// Pop quiz: What does this do?
class Foo {
    constructor() {
        console.log('foo');
    }
}
class Bar extends Foo {
    constructor() {
        super();
        super();
    }
}
new Bar();

//--------------\\