如何使用 Jinja2 将日期时间传递给模板？

Question

I want to pass the variable next_start from my application.py file to the js script in a HTML template.

start_date = datetime.datetime.strptime(input_start, '%Y-%m-%d').date()
next_start = start_date + timedelta(days=cycle_avg)
return render_template("calendar.html", next_start = next_start)

The calendar.html file script tag:

<script>
    let highlight = {{ next_start }};
</script>

This does not seem to work; how can I pass this datetime ?

Answer 1

No, it will not work. take a look at the generated script tag, and you'll see that what you've generated is not valid javascript. You want something that looks like

let highlight = new Date(....);