Comment interroger des documents MongoDB en fonction de leur date de création à l'aide d'ObjectId ?

<code class="javascript">function objectIdWithTimestamp(timestamp) {
    if (typeof(timestamp) == 'string') {
        timestamp = new Date(timestamp);
    }
    var hexSeconds = Math.floor(timestamp/1000).toString(16);
    var constructedObjectId = ObjectId(hexSeconds + "0000000000000000");
    return constructedObjectId
}

/* Find all documents created after midnight on May 25th, 1980 */
db.mycollection.find({ _id: { $gt: objectIdWithTimestamp('1980/05/25') } });</code>