问jQuery data()将这个& object传递给它

EN

(function($){
    var defaults = {
        name : 'benjamin'
    };

    function EasyZoom(target, options) {
        this.$target = $(target);       
        this.opts = $.extend({}, defaults, options, this.$target.data()); //why extend this.$target.data()?
        this._init();
    }

    EasyZoom.prototype._init = function() {
        this.printout();
    };

    EasyZoom.prototype.printout = function(){
        console.log(this.opts); 
    };

    $.fn.easyZoom = function(options){
        $.data(this, 'easyZoom', new EasyZoom(this, options));  //isn't $.data(name, value) only?, why $.data(this, 'name', object)?
    };
})(jQuery);

$(document).ready(function(e) {
    $('div').easyZoom({name: 'benny'});
});