javascript - ajax failing getting data from pre element after it gets filled -

the thing have embedded python interpreter , after user presses "run", output interpreter gets transferred pre element. want take data pre element , send django server through ajax. problem after assigning of data variable, django gets nothing. can start interpreter , ajax script after pressing "run", both work work onclick. using post request.

`$(document).ready(function(){    $('#run').click(function(){    var input_string = string(document.getelementbyid("output").innerhtml);    alert(input_string);    $.ajax({      url: '/courses/python3/lesson_validate/{{ lesson_number }}/',      data: {"text": input_string, csrfmiddlewaretoken: '{{ csrf_token }}'},      datatype: "json",      type:"post",      success: function(data, textstatus){        alert('get_response');        alert(data);      },      error : function(xhr,errmsg,err) {        alert(xhr.status + ": " + xhr.responsetext);      }    });  }); }); 

`

so code works perfectly

var input_string = string(document.getelementbyid("output").innerhtml); alert(input_string);

but when try use variable in ajax, server fails it. tried using async: false, doesn't change anything. view code:

`def lesson_validate(request,lesson_number):     args = {}     args.update(csrf(request))     out_compare = lessons.objects.get(id=lesson_number).lesson_output     if request.method == "post" , request.post.get('text') == out_compare:         text = "they equal"         return httpresponse(json.dumps(text), content_type='application/javascript')     else:         args['testtest']=request.post.get('text')         return render_to_response('course_lesson.html', args,  context_instance=requestcontext(request))` 

after check request.post.get('text') empty

the question how can data ajax, variable assigned before, not sting?

it looks you're sending json server in request, variables in django you'd need do:

def lesson_validate(request,lesson_number):   import json    data = json.loads(request.body)   text = data.get('text')   # stuff.