Install host visible name based on mapping host id field

var data = JSON.parse(value);

var itemList = data.itemList,
    hostList = data.hostList;

var exists=0;

// a row is an array
// var row = [];

// item array including the host friendly name
var itemsIncludingHostname = [];

// go through item list. every item will have hostid, but we do not know what is host name
// finding the host name is the whole point of this loop

// take one full itemid containing all characteristics like key_, units, name
for (i in itemList) {

// the mapping has not been found so far
exists=0;

        // iterate through host array to find the matching host title
        for (h in hostList) {

                // check if there is a match between the hostid which belongs at item level and the host array
                if (itemList[i].hostid === hostList[h].hostid) {

                // if there is a match then write a flag that it exists
                exists=1;
                
                
                var row = {};

                row = itemList[i];
                itemsIncludingHostname.push(row);

                row["hostTechnicalName"] = hostList[h].host;
                itemsIncludingHostname.push(row);

                row["hostVisiableName"] = hostList[h].name;
                itemsIncludingHostname.push(row);

                break;
                }
        }


}

return JSON.stringify(itemsIncludingHostname);