rlemon

NodeList.prototype.forEach = HTMLCollection.prototype.forEach = Array.prototype.forEach;
NodeList.prototype.map = HTMLCollection.prototype.map = Array.prototype.map;
NodeList.prototype.filter = HTMLCollection.prototype.filter = Array.prototype.filter;
NodeList.prototype.reduce = HTMLCollection.prototype.reduce = Array.prototype.reduce;
NodeList.prototype.every = HTMLCollection.prototype.every = Array.prototype.every;
NodeList.prototype.some = HTMLCollection.prototype.some = Array.prototype.some;
var By = { 
    id: function (id) { return document.getElementById(id) }, 
    tag: function (tag, context) { 
        return (context || document).getElementsByTagName(tag)

rlemon

So, you want to send a motherfucking XMLHttpRequest (XHR, or commonly and falsly known as AJAX.) Too bad, just ran out of motherfucking XMLHttpRequests; but I still have one regular. XHR is not magic. It does not autofuckinmagically send things the way you want them do be sent. It does not do the thinking for you. It just sends an Http Request.

You get a hold on such a prime beast like this:

rlemon

Why the jQuery Abstraction isn't needed.

(One needs some form of browser normalization so that modern features works, no-one is doubting that).

Abstractions that aren't needed

Selectors

QSA works (shim=sizzle). Besides selectors are generally bad practice. Favour node traversal, gEBI, gEBTN and gEBCN. (shim=domShim)