rend.js

<script type="text/javascript" src="statics/js/jquery.js"></script>
<script type="text/javascript">
    $(document).ready(function(){
	$('#fire').click(function() { // This event fires when a button is clicked
	    var obj = $('#inputext').val();
	    $.ajax({ // ajax call starts
		url: '/activity/', // JQuery loads serverside
		data: 'obj=' + obj, // Send value of the clicked button
		dataType: 'json', // Choosing a JSON datatype
		success: function(data) // Variable data contains the data we get from serverside
		{
		    $('#inputext').val('testing');
		}
	    });
	    return false; // keeps the page from not refreshing
	});
    });
</script>
    
    <textarea rows="10" cols="100" id="inputext">
    </textarea>
    {% if obj %}
    <p>{{ obj }}</p>
    {% endif %}
</br>
    <button class="fire" name="fire" id="fire" type="submit">Submit</button>