Custom Class to Slick Carousel Next Prev Items and animation

Custom Class to Slick Carousel Next Prev Items and animation

/*
Site sample: http://nysi.co/
*/
(function($) {
        "use strict";

        jQuery(document).ready(function($) {

            $('#slider').slick({
                centerMode: true,
                centerPadding: '100px',
                slidesToShow: 1,
                autoplay: true,
                autoplaySpeed: 10000,
                infinite: true,
                responsive: [{
                    breakpoint: 768,
                    settings: {
                        arrows: false,
                        centerMode: true,
                        centerPadding: '50px',
                        slidesToShow: 1
                    }
                }, {
                    breakpoint: 480,
                    settings: {
                        arrows: false,
                        centerMode: false,
                        slidesToShow: 1
                    }
                }]
            });


            function add_class() {

                $('.caption').removeClass('animated fadeInLeft fadeInRight pulse previous_caption next_caption');

                $('.slick-current .caption').addClass('animated pulse', function() {

                    var prev = $('.slick-current').prev().find('.caption').addClass('previous_caption');
                    var next = $('.slick-current').next().find('.caption').addClass('next_caption');

                    prev.addClass('animated fadeInLeft');
                    next.addClass('animated fadeInRight');


                });


                // $('.slick-slide').removeClass('Custom-Prev').removeClass('Custom-Next');
                // prev.addClass('Custom-Prev');
                // next.addClass('Custom-Next');

            }

            $('#slider').on('swipe', function(event, slick, direction) {
                add_class();
            });

            $('#slider').on('afterChange', function(event, currentSlide) {
                add_class();
            });

            add_class();

        });