function compareData(oldArray, newArray) {
        newArray.forEach(arr => {
            if (arr.reference && arr.value) {
                let findInOldArray = oldArray.findIndex(o => String(o.reference) === String(arr.reference));
                findInOldArray >= 0 ? oldArray[findInOldArray].value = arr.value : oldArray.push(arr);
            } else {
                if (arr.value) oldArray.push(arr);
            }
        });
        return oldArray;
    }