GLib.Date.prototype.compare

function compare(rhs: GLib.Date): Number(gint) {
    // Gjs wrapper for g_date_compare()
}

qsort()-style comparison function for dates. Both dates must be valid.

rhs: second date to compare
Returns: 0 for equal, less than zero if lhs is less than rhs, greater than zero if lhs is greater than rhs