Export when2meet data from JS console

export_when2meet.js

function exportData() {
    const peopleMap = {};
    for(let i = 0; i < PeopleIDs.length; i++) {
        peopleMap[PeopleIDs[i]] = PeopleNames[i];
    }
    nameAtSlot = AvailableAtSlot.map(e => e.map(i => peopleMap[i]));
    timedNames = TimeOfSlot.map((e, i) => [e, nameAtSlot[i]]);
    return JSON.stringify(timedNames);
}

FWIW when2meet also seems to support (at least now), a csv query param that will serve the data as CSV (though transposed from the versions above here in the gist).

Example: filled in a couple of peoples' responses in https://www.when2meet.com/?24892637-Evxyx and can get the CSV with a simple request (note the trailing &csv):

$ curl 'https://www.when2meet.com/?24892637-Evxyx&csv'
,Monday 09:00:00,Monday 09:15:00,Monday 09:30:00,Monday 09:45:00,Monday 10:00:00,Monday 10:15:00,Monday 10:30:00,Monday 10:45:00,Monday 11:00:00,Monday 11:15:00,Monday 11:30:00,Monday 11:45:00,Monday 12:00:00,Monday 12:15:00,Monday 12:30:00,Monday 12:45:00,Monday 13:00:00,Monday 13:15:00,Monday 13:30:00,Monday 13:45:00,Monday 14:00:00,Monday 14:15:00,Monday 14:30:00,Monday 14:45:00,Monday 15:00:00,Monday 15:15:00,Monday 15:30:00,Monday 15:45:00,Monday 16:00:00,Monday 16:15:00,Monday 16:30:00,Monday 16:45:00,Tuesday 09:00:00,Tuesday 09:15:00,Tuesday 09:30:00,Tuesday 09:45:00,Tuesday 10:00:00,Tuesday 10:15:00,Tuesday 10:30:00,Tuesday 10:45:00,Tuesday 11:00:00,Tuesday 11:15:00,Tuesday 11:30:00,Tuesday 11:45:00,Tuesday 12:00:00,Tuesday 12:15:00,Tuesday 12:30:00,Tuesday 12:45:00,Tuesday 13:00:00,Tuesday 13:15:00,Tuesday 13:30:00,Tuesday 13:45:00,Tuesday 14:00:00,Tuesday 14:15:00,Tuesday 14:30:00,Tuesday 14:45:00,Tuesday 15:00:00,Tuesday 15:15:00,Tuesday 15:30:00,Tuesday 15:45:00,Tuesday 16:00:00,Tuesday 16:15:00,Tuesday 16:30:00,Tuesday 16:45:00,Wednesday 09:00:00,Wednesday 09:15:00,Wednesday 09:30:00,Wednesday 09:45:00,Wednesday 10:00:00,Wednesday 10:15:00,Wednesday 10:30:00,Wednesday 10:45:00,Wednesday 11:00:00,Wednesday 11:15:00,Wednesday 11:30:00,Wednesday 11:45:00,Wednesday 12:00:00,Wednesday 12:15:00,Wednesday 12:30:00,Wednesday 12:45:00,Wednesday 13:00:00,Wednesday 13:15:00,Wednesday 13:30:00,Wednesday 13:45:00,Wednesday 14:00:00,Wednesday 14:15:00,Wednesday 14:30:00,Wednesday 14:45:00,Wednesday 15:00:00,Wednesday 15:15:00,Wednesday 15:30:00,Wednesday 15:45:00,Wednesday 16:00:00,Wednesday 16:15:00,Wednesday 16:30:00,Wednesday 16:45:00,Thursday 09:00:00,Thursday 09:15:00,Thursday 09:30:00,Thursday 09:45:00,Thursday 10:00:00,Thursday 10:15:00,Thursday 10:30:00,Thursday 10:45:00,Thursday 11:00:00,Thursday 11:15:00,Thursday 11:30:00,Thursday 11:45:00,Thursday 12:00:00,Thursday 12:15:00,Thursday 12:30:00,Thursday 12:45:00,Thursday 13:00:00,Thursday 13:15:00,Thursday 13:30:00,Thursday 13:45:00,Thursday 14:00:00,Thursday 14:15:00,Thursday 14:30:00,Thursday 14:45:00,Thursday 15:00:00,Thursday 15:15:00,Thursday 15:30:00,Thursday 15:45:00,Thursday 16:00:00,Thursday 16:15:00,Thursday 16:30:00,Thursday 16:45:00,Friday 09:00:00,Friday 09:15:00,Friday 09:30:00,Friday 09:45:00,Friday 10:00:00,Friday 10:15:00,Friday 10:30:00,Friday 10:45:00,Friday 11:00:00,Friday 11:15:00,Friday 11:30:00,Friday 11:45:00,Friday 12:00:00,Friday 12:15:00,Friday 12:30:00,Friday 12:45:00,Friday 13:00:00,Friday 13:15:00,Friday 13:30:00,Friday 13:45:00,Friday 14:00:00,Friday 14:15:00,Friday 14:30:00,Friday 14:45:00,Friday 15:00:00,Friday 15:15:00,Friday 15:30:00,Friday 15:45:00,Friday 16:00:00,Friday 16:15:00,Friday 16:30:00,Friday 16:45:00
"Alice",Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,No,No,No,No,No,No,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,No,No,No,No,No,No,No,No,No,No,No,No,No,No,No,No,Yes,Yes,Yes,No,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,No,No,No,No,No,Yes,Yes,Yes,No,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,No,No,No,No,No,Yes,Yes,Yes,No,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No
"Bob",No,No,No,No,No,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,No,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,No,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,No,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,No,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No,No,No,No,No,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,Yes,No