Quick and dirty AB testing

AB-test.js

    (function( $ ) {
        'use strict';

        // split traffic between this page and a B-variant
        function ABredirect( path, weight, variationFunction ) {
            path = path || '/index.html';
            weight = weight || 0.5;

            // is this the B-variant?
            if ( window.location.pathname.indexOf( path ) === -1 ) {
                // A variant: redirect some traffic to B variant
                if ( Math.random() < weight ) {
                    window.location.href = path;
                }
                
            } else {
                // B variant: run function
                if ( typeof variationFunction === 'function' ) {
                    // run onready
                    $( variationFunction );
                }
            }
        }

        // redirect
        ABredirect( '/homepage/index.html', 0.5, function() {
            $( '.content-row.announcements', '#content' )
            .insertBefore( '#content .content-row.franchises' )
            .addClass( 'featured-news' );
        });


    }( jQuery ));