blog_good2.js

Rectangle = function(w,h) {
    var width = w, height = h;
    return {
        getWidth: function() { return width; },
        getHeight: function() { return height; },
        setWidth: function(w) { width = w; },
        setHeight: function(h) { height = h; },
        area: function() { return width * height },
        toString: function() { return '(' + width + 'X' + height + ')' }
    };
};