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/**
* Watcher leaks for jQuery
* RubaXa <trash@rubaxa.org>
* MIT Licensed.
*
* API:
* $.leaks.get();
* $.leaks.watch();
* $.leaks.unwatch();
* $.leaks.remove();
*/
(function ($){
"use strict";
var
timeoutId
, expando = $.expando
, console = window.console
// Events, that can lead to changes in DOM
, events = 'mousedown mouseup keyup keypress DOMNodeRemoved DOMNodeInserted'.split(' ').join('.leaks ')+'.leaks'
, count = 0 // previous
;
function _get(){
var cache = $.cache; // Get jQuery cache
var leaked = []; // Leaked DOM elements
for( var id in cache ){
var item = cache[id][expando] || cache[id];
if( item && item.handle ){
var el = item.handle.elem; // Get DOM Element
// Check parents
if( el.nodeType == 1 && !_inDOM(el) ){
leaked.push(el);
}
}
}
return leaked;
}
function _watch(){
var n = _get().length, txt = 'jQuery leaks: ' + n;
if( n && count !== n && console ){
if( console.warn ){
console.warn(txt);
} else if( console.info ){
console.info(txt);
} else {
console.log('[WARN]', txt);
}
}
count = n;
}
function _inDOM(el){
do {
if( el === document.body ){
return true;
}
} while( el = el.parentNode );
return false;
}
// @export
$.leaks = $.extend({
delay: 3000,
/**
* Start to monitor leakage
*/
watch: function (){
$(document).bind(events, function (){
clearTimeout(timeoutId);
timeoutId = setTimeout(_watch, $.leaks.delay);
});
},
/**
* Stop to monitor leakage
*/
unwatch: function (){
$(document).unbind('.leaks');
},
/**
* Get leaked DOM elements
* @return {Array}
*/
get: function (){
return _get();
},
/**
* Remove leak
*/
remove: function (){
$.cleanData(_get());
}
}, $.leaks);
})(jQuery);
@Akilak11

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commented Apr 19, 2017

here are some problem
function _inDOM(el){
do {
if( el === document.body ){
return true;
}
} while( el = el.parentNode );

	return	false;
}
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