javascript - Smart way to add elements to all objects in array? js/jquery/knockout -

for example have array this:

var t = ko.observablearray([   {"foodname":"rice","foodoften":"2"},   {"foodname":"apple","foodoften":"3"} ]);    

how can add static item of them below in smart way?

[   {"student":"1","foodname":"rice","foodoften":"2"},       {"student":"1","foodname":"apple","foodoften":"3"}       ] 

i know can loop t().length add t()[n].student="1" wondering there smart way knockout?

every variation on answering question going form of 'iterate on array , add value each object'. few:

t.foreach(function(entry) {     entry.student = 1; });  var newt = t.map(function(entry) {     entry.student = 1;     return entry; });  (var = 0; i++; i< t.length) {     t[i].student = 1; } 

incidentally, @ least in chrome, jsperf says first efficient of three.