Close open-ended range

[strarsis]

Close open-ended range

[TristanJM]

This should work:

const r = moment.range(moment('2017-01-01T13:30:00'));
console.log(r.toString());  // 2017-01-01T13:30:00+00:00/275760-09-13T01:00:00+01:00
r.end = moment();
console.log(r.toString());  // 2017-01-01T13:30:00+00:00/2019-10-07T10:58:58+01:00

Otherwise, feel free to use .copy() and pass in the old range's start and your new end.