a module to write tcx files
npm install tcxwriterhttps://www8.garmin.com/xmlschemas/TrainingCenterDatabasev2.xsd
npm install --save tcxwriter
``
import {addTrackPoint, writeTcx} from "tcxWriter";
const trackPoint = {
power: 100,
cadence: 95,
speed: 30,
hr: 130,
time: new Date().toISOString()
}
addTrackPoint(trackPoint);
const result = writeTcx();
`
writeTcx()` will return a string in the xml tcx format.