I'm trying to get only the specific value of "E_m" from this below URL with pure JavaScript but I cannot find how to make it.
URL: https://re.jrc.ec.europa.eu/api/PVcalc?lat=45&lon=8&peakpower=1&loss=14&outputformat=json
JSON Tree:
"outputs": {
"monthly": {
"fixed": {
{"E_m": 80.15}}}}