Template for and while cycles

[lucasub]

Hello, is possible make "for" and "while" cycles inside html template?
How can I do this?
Thank you
Luca

[lixas]

I had the same request and was able to solve it here #28

[artemisoftnian]

I was looking how to make a loop work inside the html template, I just read about inline python syntax. but the end code its a little bit difficult to even look at it!. So was I end doing was, passing the data variable to a javascript variable using: for example:
var MyJsVar = {{ str(PhewData) }}
and then use that variable to do the job done!

[Nikorasu]

Here's an example how I created an html table, from a list, using a for-loop within double {{}} in the html file that gets loaded via render_template():
{{''.join([f'<tr> <td>{entry[0]}</td> <td>{entry[1]}</td> </tr>' for entry in entries])}}
Basically uses list comprehension, to make a list of strings containing the html for each table row, and also uses f-string to insert the individual sub-entries in my list (cause it was a list of names and emails in my case) into the string. Then uses ''.join() to make that new list into one large string, which the double-brackets then return as html code when run through the render_template.
When I return the render_template in my main python code, I pass the entries list to it:
return render_template("tablepage.html", entries=myTableList)