1var obj = '[{"availability_id":"109465","date":"2017-02-21","price":"430000"},{"availability_id":"109466","date":"2017-02-22","price":"430000"},{"availability_id":"109467","date":"2017-02-23","price":"430000"}]';
2var stringify = JSON.parse(obj);
3for (var i = 0; i < stringify.length; i++) {
4    console.log(stringify[i]['price']);
5}