moment.js 显示时间

popper.min.js 对提示框做美化

<small data-toggle="tooltip" data-placement="top"
data-timestamp="{{ message.timestamp.strftime('%Y-%m-%dT%H:%M:%SZ') }}"
data-delay="500">
{{ moment(message.timestamp).fromNow(refresh=True) }}
</small>
<script type="text/javascript" src="{{ url_for('static', filename='js/popper.min.js') }}"></script>

计算时间间隔

{{ moment(message.timestamp).fromNow(refresh=True)}}