How to call in plugin options in jquery plugins

   blink: function ( ){

        // save a reference of 'this'
        var that = this;

        setInterval(function() {

            // use the saved reference instead of 'this'
            button.options["blinkShow"].call(that);

        }, button.options["interval"]);
    }

jQuery.fn.plugin = function(){
  //"community" (global to local methods) vars here.
  var selectedObjects = this; //-- save scope so you can use it later

  // return the objects so you can call them as necessary
  return {  
            popup: { //plugin.popup
                    login: function(){ //plugin.popup.login
                         //selectedObjects contains the original scope
                         console.log(selectedObjects);
                    },
                    product: function(){} //plugin.popup.product
            },
            element: { //plugin.element
                    shoppingCart: function() {}, //plugin.element.shoppingCart
                    loginStatus: function() {} //plugin.element.loginStatus
            }
         }
}

new Pikaday({ 
    field: document.getElementById(identification),
    minDate: condition === true ? new Date(moment().format("YYYY, MM, DD")) : undefined
});

 $('#table').bootstrapTable({
     columns: [{
         field: 'id',
         title: 'Item ID'
     }, {
         field: 'name',
         title: 'Item Name'
     }, {
         field: 'price',
         title: 'Item Price'
     }, {
         field: 'select',
         title: 'Select item',
         checkbox: true,
         clickToSelect: true
     }],
     data: [{
         id: 1,
         name: 'Item 1',
         price: '$1'
     }, {
         id: 2,
         name: 'Item 2',
         price: '$2'
     }]
 });

$.fn.formatCommas = function(str){
        return parseFloat(str).toLocaleString(undefined, {
            minimumFractionDigits: 2,
            maximumFractionDigits: 2
        });
}

var number = 1000000;

//attempt 1
var formatted = $.fn.formatCommas(number);


console.log('formatted number: ' + formatted);

$('#number').val(number);

$('#formatted').val(formatted);