Validate at least One check box is checked in django html template via Ajax

I am showing pagination gird on django templates,

{% for result in page.object_list %}
<td style="border:0;border-bottom:1px solid #eeeeee;">
<input type="checkbox" id="{{result.object.user_id}}" name="selectedvalues[]" value="{{ result.object.user_id }}">
{% endfor %}

and there is a button at the end of this to delete the users. I want to validate that on delete button press it should validate that at least one user is selected via check box.

    var $checkboxes $('# td input[type="checkbox"]');
    $('.checkbox input').each(function(index) {
        if($(this).is(':checked')) {
        } else {
            $(this).attr('value', 'False');
      alert('You must select at lease one user');


but it is not working.....


$("#delete").click(function() {
    if ($('input[type="checkbox"]:checked').length > 0) {
    } else {
        alert("Not checked");

If you have other checkboxes on page then add a class to your <input> and select items in JS by this class:

<input type="checkbox" class="deletechk" name="selectedvalues[]"
                                         value="{{ result.object.user_id }}">

And in Javascript code:

if ($('.deletechk:checked').length > 0) {

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