(function ( $ ) {

  // -- This is Person Object used for plugin

  var PersonObject = function(elem, options)

  {

    this.elem = elem;

    this.options = options;

    this.run();

  };

​

  PersonObject.prototype = {

    run: function() {

      this.appendedEl = $('<a class="btn btn-link btncok">'+this.options.person_name+'</a>');

      this.elem.after(this.appendedEl);

      this.appendedEl.on('click', function(e) { // <--- this way the event is attached to the right element

        e.stopImmediatePropagation();

        this.show();

      }.bind(this)); 

​

      return this;

    },

    show: function() {

      console.log(this.options.person_name);

    }

  };

  // -- end Person Object

​

  // -- This is my jquery fn function

  $.fn.myPlugin = function(options) {

​

    // here is default options

    var default_options = {person_name: 'father'};

    options = $.extend({}, default_options, options);

    return this.each(function() {

      new PersonObject($(this), options);

    });

  };

  // -- end jquery plugin

​

}( jQuery ));

​

​

$('.something-one').myPlugin({person_name: 'mother'});

// result wrong : father (should be mother)

​

// call the plugin WITHOUT parameters

$('.something-two').myPlugin();