Question

I have the following:

var Save = $('th:first')[0];

$('th').click(function() {
    if (Save !== this) {
        Save = this;
        ...
    }
});

How do I put “Save” into a closure scope?

Answer 1

With jQuery, I tend to wrap the whole lot in a function, that passes in the jQuery object as $, to avoid namespace clashes on that shorthand, as recommended by the jQuery documentation.

(function($) {
    // ....
})(jQuery);

Any variables within that scope, for instance your var Save, are then out of the global name scope, in a closure.