python - Access Javascript variable in Django Template -

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is there way access javascript variable in django template tags ?
can , 

<!doctype html> <html>     <body>     <script>         var javascriptvar=0;     </script>     {% if javascriptvar==0 %}              {% else %}              {% endif %}     </body> </html>

no, django template compiled server side. sent client browser executes javascript. nothing changed javascript executing on client browser can have affect on template. it's late @ point.

however javascript make request server more information. or pre-compute value on server before send client. if more explicit trying should able help.

you can of course use django templates set javascript variables. 

<script>     var myvar = '{{ py_var }}'; </script>

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