CODEWITHSUNDEEP
javascriptpythonflaskjinja2
Zaffer
Zaffer

Reputation: 1809

set a javascript Null value if a python value is None in Jinja Expression

I want to set a default value in javascript in case the {{ }} jinja expression returns nothing. This way the javascript does not throw an error.

Is there some way to make a default value like this in the HTML file:

<script>
  var info= {{ python_info | safe }}?self:null;
</script>

If python_info is "" then I want the javascript to be null or some other default value.

I know you can could do an || or solution but this messes up the linting even worse.

Upvotes: 0

Views: 1168

Answers (1)

balderman
balderman

Reputation: 23825

The below should work

<script>
  var info = {{ python_info if python_info else 'null' }};
</script>

Upvotes: 1

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