markelog

// jQuery made popular chaining style in JavaScript,
// as i recall this approach we liked at San Diego meeting,
// i think we could use similar approach for $.xhr
//
// also https://github.com/visionmedia/superagent

$.xhr( "url" )

	// Default method is GET
	.method( "post" )

markelog

// In previous versions of jQuery, on every for iteration new div was created in jQuery.clean,
// now, on every iteration only one div is used, which created some problems –
    
    // Illustration of WebKit bug
    div = document.createElement("div");
    div.innerHTML = "1";

    nodes = jQuery.merge( [], div.childNodes );
    div.innerHTML = "2";

markelog

// suppose we have this in css
// .hidden { display: none; }
// .inline { display: inline; }

// then in javascrpit
$('<div class="hidden"/>').css("display");
// for FF – "none"
// for IE – "block"
// For Chrome, Opera – ""

markelog

// We can't copy stuff in clipboard in Chrome, Safari and Firefox (Opera)
// Maybe one day this tickets will be resolved – 
// https://bugzilla.mozilla.org/show_bug.cgi?id=407983 
// https://bugs.webkit.org/show_bug.cgi?id=17645
// But if they will, we still can only copy text to clipboard only during clipboard events
// We might get around this, it's not a production code, just...

var clipboard = function() {};

// If we have firebug installed

markelog

var fragment, div, clonedNode, firstP, secondP, clonedP, dbi, clonedBdi,
    node = document.createElement("div");

    // true in all browsers
    console.log( node.parentNode == null );

    // but after
    node.getElementsByTagName();

    // true only in ie < 9