//Before: antipattern 3 global variables
    var setActivePage = function () {};
    var getPage = function() {};
    var redirectPage = function() {};

//After:  just 1 global variable, no function collision and more meaningful function names
    var NavigationNs = NavigationNs || {};
    NavigationNs.active = function() {}
    NavigationNs.pagination = function() {}
    NavigationNs.redirection = function() {}

When multiple modules are involved, avoid proliferating global names by creating a single global namespace. From there, any sub-modules can be added to the global namespace. (Further nesting will slow down performance and add unnecessary complexity.) Longer names can be used if name clashes are an issue:

 var NavigationNs = NavigationNs || {};
     NavigationNs.active =  {};
     NavigationNs.pagination = {};
     NavigationNs.redirection = {};
    
     // The second level start here.
     Navigational.pagination.jquery = function();
     Navigational.pagination.angular = function();
     Navigational.pagination.ember = function();