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JavaScript Hates You
var foo = new Object();
var bar = new Object();
var map = new Object();
map[foo] = "foo"; // --> map["[Object object]"] = "foo";
map[bar] = "bar"; // --> map["[Object object]"] = "bar";
// NOTE: second mapping REPLACES first mapping!
alert(map[foo]); // --> alert(map["[Object object]"]);
// and since map["[Object object]"] = "bar",
// this will alert "bar", not "foo"!!
// SURPRISE! ;-)
// Code snippet from www.toptal.com
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