Does not work:

      function reloadForm() {
        jQuery.ajax({
          url: "<generate_form_url>",
          type: "GET",
          complete: custom_function_with_js_in_response()
        });
      };

$('#link_form').ajaxComplete(function() {
  custom_function_with_js_in_response();
});

$(document).ready(function() {

    $('#obj').click(function() {

    $.ajax({
        url: "<url>"
    }).done(function() {
      do_something_here();
    });
});

$(document).ready(function() {

    $('#obj').click(function() {

    $.ajax({
        url: "<url>",
        success: function(data){
          do_something_with(data);
        }
    })
});

// undefine the function before the AJAX call
// replace myFunc with the name of the function to be executed on complete()
myFunc = null;

$.ajax({
    ...
    complete: function() {
       runCompleteCallback(myFunc);
    },
    ...
});

function runCompleteCallback(_func) {
    if(typeof _func == 'function') {
        return _func();
    }
    setTimeout(function() {
        runCompleteCallback(_func);
    }, 100);
}

$('.log').ajaxComplete(function(e, xhr, settings) {
    if (settings.url == 'ajax/test.html') {
        $(this).text('Triggered ajaxComplete handler. The result is ' +
                 xhr.responseHTML);
    }
});

function reloadForm() {
        jQuery.ajax({
          url: "<generate_form_url>",
          type: "GET",
          complete: custom_function_with_js_in_response
        });
      };