var dms = longdo.Util.locationToDMS(location);

• dms: Degrees Minutes Seconds format

var utmZone = longdo.Util.locationToUTMZone(location);
var utmProj = '+proj=utm +zone=' + utmZone.zone + (utmZone.hemisphere == 'S' ? ' +south' : '') + ' +datum=WGS84 +units=m +no_defs'
var utmPoint = proj4(utmProj, [location.lon, location.lat])

• ค่า utmZone: Universal Transverse Mercator system
• ค่า utmProj: Projection that you want to convert
• ค่า utmPoint: Coordinates that have been converted