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function handler(mutations) {}
var observer = new MutationObserver(handler);
var options = {attributes: true}
observer.observe(element, options);

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// Source: http://code.google.com/p/gflot/source/browse/trunk/flot/base64.js?r=153

/* Copyright (C) 1999 Masanao Izumo <[email protected]>
 * Version: 1.0
 * LastModified: Dec 25 1999
 * This library is free.  You can redistribute it and/or modify it.
 */

/*
 * Interfaces:

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Statistical profiling result from isolate-0x55f6bb94e1f0-v8.log, (7139 ticks, 137 unaccounted, 0 excluded).

 [Shared libraries]:
   ticks  total  nonlib   name
    318    4.5%          /usr/bin/node
    194    2.7%          /lib/x86_64-linux-gnu/libc-2.27.so
     18    0.3%          /usr/lib/x86_64-linux-gnu/libuv.so.1.0.0
      2    0.0%          [vdso]
      1    0.0%          /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25

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Object.prototype[Symbol.iterator]=function* objectIterator(){
	const keys=Object.keys(this);
	for(var i=0;i<keys.length;i++) yield keys[i];
}

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function getEventNames() {
    var doc = [];
    for (var i in document) {
        doc.push(i)
    };
    doc = doc.filter(function(i) {
            var e = document[i];
            return i.substring(0, 2) == 'on' && (e == null || e instanceof Function)
        })
        .map(s => s.replace(/^on/, ""));

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(function(a){function c(e,f){var g=Object.create(this);if(e instanceof Array){if(f instanceof Array)for(var h in e)g[e[h]]=f[h];else for(var h in e)g[e[h]]=f;}else if(e instanceof Object)for(var j in e)g[j]=e[j];else g[e]=f;return g=Object.create(g),Object.freeze(g),g}function*d(){for(let e in this)yield this[e]}a.Subzero=function(e){var f=this;return f[Symbol.iterator]=d,Object.defineProperty(f,"set",{value:c}),Object.freeze(f),f.set(e)}})(window);

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// This is implementing a iterable WeakMap
// It has the same methods as WeakMap and in addition:
// It's keys and values are readable properties.
// It can be iterated by map and reduce, Arguments: key, value
class IterableWeakMap{
    constructor(){
        Object.defineProperties(this,{
            keys:{
                enumerable: false,
                writable: true,

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// subClass returns a constructor wrapper function that has all the methods in the subclass Prototype,
// while keeping the original return type's prototype
// when to use? augmenting objects generated by classes with methods.
// since it is a wrapper also native classes like Array, String, Number can safely be extended
// adding methods to returned objects is also reasonably fast this way, because only the Prototype needs to be set
function subClass(constructor, returnType, methods) {
    function collector() {}
    methods = methods ? methods instanceof Array ? methods : [methods] : [];
    const subConstructor = function() {
        const obj = constructor(...arguments);

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(function(global) {
    // Instead of looping trough all possibilities a object property lookup is used
    // The object construction is in addition memoized, since it's relatively expensive
    var hashFindHash = {};

    function hashFind(str, hash, delimiter) {
        delimiter = delimiter || ";";
        if (hashFindHash.hasOwnProperty(hash)) {
            return hashFindHash[hash].hasOwnProperty(str);
        } else {

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(function(global) {
    var PARENT = "[[__PARENT__]]";

    function Immutable(obj) {
        if (obj instanceof Object) {
            for (var keys = Object.keys(obj), i = 0; i < keys.length; i++) {
                this[keys[i]] = obj[keys[i]];
            }
        }
        if (obj !== false) Object.freeze(this);