Simple solution to improve links click behaviour with jQuery by scrolling to hash removing useless page refresh when clicking on same page links.

better-links.js

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

    /**
     * Improve anchors click behaviour:
     * - Scroll to hash
     * - Prevent useless refresh when clicking on same page links
     */
    $('a').on('click', function(event) {

        var $this = $(this);

        var current_url_relative = window.location.href.replace(window.location.origin, '').split('#')[0];
        var href_url_relative = $(this).attr('href').replace(window.location.origin, '').split('#')[0];
        var is_same_page = current_url_relative === href_url_relative;

        if (is_same_page) {
            event.preventDefault();

            /**
             * Position to scroll to.
             *
             * - No-hash: 0
             * - Hash: the position of the referenced element (uses HTML id attribute)
             * 
             * @type Integer
             */
            var to = ($this.is('[href*=#]')) ? $(this.hash).offset().top : 0;

            /**
             * Scroll.
             */
            $('html,body').animate({scrollTop: to});

            /**
             * Update address bar and history.
             */
            if (history.pushState) {
                history.pushState(null, null, $this.attr('href'));
            }
        }
    });

    /**
     * Required for the back/forward buttons to work.
     */
    $(window).bind('popstate', function() {
        window.location.href = window.location.href;
    });
});