from django.shortcuts import render

def main_page(request):
  return render(request, 'index.html')

from django.shortcuts import render

def main_page(request):
  data = [1,2,3,4]
  return render(request, 'index.html', {'data': data})

<div>{{ data }}</div>

{% for item in data%}
<p>{{ item }}</p>
{% endfor %}

# -*- coding: utf-8 -*-
 
import json
from django.shortcuts import render
 
def main_page(request):
  list = ['view', 'Json', 'JS']
  return render(request, 'index.html', {
      'List': json.dumps(list),
    })

var List = {{ List|safe }};

def scene_update_view(request):
  if request.method == "POST":
      name = request.POST.get('name')
      status = 0
      result = "Error!"
      return HttpResponse(json.dumps({
        "status": status,
        "result": result
      }))

    function getSceneId(scece_name, td) {
      var post_data = {
        "name": scece_name,
      };

      $.ajax({
        url: {% url 'scene_update_url' %},
        type: "POST",
        data: post_data,
        success: function (data) {
          data = JSON.parse(data);
          if (data["status"] == 1) {
            setSceneTd(data["result"], scece_name, td);
          } else {
            alert(data["result"]);
          }
        }
      });
    }