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"use strict";
var $result = $('#result');
var obj = {
    init: function() {
        $result.append('<p>this within init: ' + this + '</p>');
        return this.lam = function() { $result.append('<p>this within returned lambda in init: ' + this + '</p>'); };
    }
};
obj.init()();

<div id="result"></div>