javascript - Knockout.js: adding elements to observable-array -


i have problem loading element items observable-array - event.

viewmodel = (function () {     var          items = ko.observablearray([]),          removeitems = function (element) {             items.remove(element);         },         saveall = function () {             return ko.tojs(items);         },         additem = function (element) {             items.push(element);             return false;  // no page-reload after button-klick         };      return {         items: items,         // call additem dummy object (for testing)         clicksave: additem(new customer(1, "tfsd", "tfsd"))     }; })();

(fiddle)

why additem function called, without clicking button? because of () @ end of function?

    additem = function (element) {         items.push(element);         return false;  // no page-reload after button-click     };

what can make event only? or problem somewhere else?

use 

return {     items: items,     clicksave: additem };

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