javascript - jQuery DataTables - Refactoring Code to remove 'aoColumn' duplication -

i'm using jquery datatables render timeline , each column represents day. have method called when each column (day) rendered , it's passed in date array.

is there better way write code below i'm not repeating myself 7 times whilst still being able pass in array item? cannot see stands out in docs.

datatable = $('#example').datatable({ "bretrieve":true, "bprocessing":true, "aadata": data, // datatables requires render function each column (day) "aocolumns":[     {         "mdata":null,         "fnrender":function (obj) {             return day(obj, week[0]);         }     },     {         "mdata":null,         "fnrender":function (obj) {             return day(obj, week[1]);         }     },     {         "mdata":null,         "fnrender":function (obj) {             return day(obj, week[2]);         }     },     {         "mdata":null,         "fnrender":function (obj) {             return day(obj, week[3]);         }     },     {         "mdata":null,         "fnrender":function (obj) {             return day(obj, week[4]);         }     },     {         "mdata":null,         "fnrender":function (obj) {             return day(obj, week[5]);         }     },     {         "mdata":null,         "fnrender":function (obj) {             return day(obj, week[6]);         }     } ] 

});

here simple solution, using $.map():

datatable = $("#example").datatable({     bretrieve: true,     bprocessing: true,     aadata: data,     aocolumns: $.map(array(7), function(value, index) {         return {             mdata: null,             fnrender: function(obj) {                 return day(obj, week[index]);             }         };     }) }); 

in code above, array(7) creates sparse array of 7 elements (indexed 0 6), set undefined. then, $.map() projects object literals indices in array. result array of object literals second argument day() varying current index.