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OK, simple:
self = $(this);
Throws a JavaScript error in IE8 when it’s inside an event handler. It works in every other browser.
var self = $(this);
Throws no error. Why?
The answer is that
varkeyword staring back out at you.When you reference just plain
self, you’re referencing a global variable and IE won’t let you change it. When you writevar selfyou’re declaring a local variable.