js_date_test.js

var date1 = new Date(2013, 10, 12);
var date2 = new Date(2013, 10, 12);

/*
When running the javascript in this file you get the following output ...

$ node js_date_test.js
Tue Nov 12 2013 00:00:00 GMT-0800 (PST)
Tue Nov 12 2013 00:00:00 GMT-0800 (PST)
false
false
false
false

Which didn't make sense, because the last two console.logs should be true.
However thanks to @isntitvacant I got this explanation.

>> Date objects provide a `valueOf()` method that returns their value as a
>> integer unix epoch millisecond timestamp and you can trigger `valueOf()`
>> with unary `+`

*/

console.log(date1);
console.log(date2);
console.log(date1 > date2);
console.log(date1 < date2);
console.log(date1 == date2);
console.log(date1 === date2);

/*
So putting what @isntitvacant said into practice. The following console.logs output ...

Tue Nov 12 2013 00:00:00 GMT-0800 (PST)
Tue Nov 12 2013 00:00:00 GMT-0800 (PST)
false
false
true
true

*/

console.log(Array(40).join("-"));
console.log(date1);
console.log(date2);
console.log(+date1 > +date2);
console.log(+date1 < +date2);
console.log(+date1 == +date2);
console.log(+date1 === +date2);