hs.slider.js

/**
 * Slider wrapper.
 *
 * @author Htmlstream
 * @version 1.0
 *
 */
;
(function ($) {
    'use strict';

    $.HSCore.components.HSSlider = {
        /**
         *
         *
         * @var Object _baseConfig
         */
        _baseConfig: {
            dateFormat: 'dd.mm.yy',
            prevText: '<i class="fa fa-angle-left"></i>',
            nextText: '<i class="fa fa-angle-right"></i>'
        },

        /**
         *
         *
         * @var jQuery pageCollection
         */
        pageCollection: $(),

        /**
         * Initialization of Slider wrapper.
         *
         * @param String selector (optional)
         * @param Object config (optional)
         *
         * @return jQuery pageCollection - collection of initialized items.
         */

        init: function (selector, config) {

            this.collection = selector && $(selector).length ? $(selector) : $();
            if (!$(selector).length) return;

            this.config = config && $.isPlainObject(config) ?
                $.extend({}, this._baseConfig, config) : this._baseConfig;

            this.config.itemSelector = selector;

            this.initSlider();

            return this.pageCollection;

        },

        initSlider: function () {
            //Variables
            var $self = this,
                config = $self.config,
                collection = $self.pageCollection;

            //Actions
            this.collection.each(function (i, el) {
                //Variables
                var $this = $(el),
                    $resultContainer = $this.data('result-container'),
                    rangeBoolean = $this.data('range'),
                    minVal = $this.data('min'),
                    maxVal = $this.data('max'),
                    defaultVal = $this.data('default'),
                    orientation = $this.data('orientation'),
                    step = $this.data('step');

                $this.slider({
                    range: rangeBoolean == 1 ? true : 'min',
                    min: minVal,
                    max: maxVal,
                    orientation: orientation ? orientation : 'horizontal',
                    step: step ? step : 1,
                    values: rangeBoolean == 1 ? JSON.parse('[' + defaultVal + ']') : false,
                    value: defaultVal ? defaultVal : false,
                    slide: function (event, ui) {
                        if (rangeBoolean == 1) {
                            $('#' + $resultContainer).text(ui.values[0] + ' - ' + ui.values[1]);
                        } else {
                            $('#' + $resultContainer).text(ui.value);
                        }
                    }
                });

                if (rangeBoolean == 1) {
                    $('#' + $resultContainer).text($this.slider('values', 0) + ' - ' + $this.slider('values', 1));
                }

                //Actions
                collection = collection.add($this);
            });
        }

    };

})(jQuery);

sample.html

<div class="u-slider-v1" data-orientation="vertical" data-step="1" data-default="1" data-min="0" data-max="10" style="height:200px;"></div>

style.css

.u-slider-v1.ui-slider-vertical .ui-slider-handle {
    top: auto !important;
    left: 0.4em !important;
}

Hello
I'm new to programming. Could you please provide some information about what the above code does or how we can use it in out code?
Thanks in advance.