JAVASCRIPT

uncaught TypeError: $.jajax is not a function

    <script src="https://code.jquery.com/jquery-3.1.1.min.js" integrity="sha384-3ceskX3iaEnIogmQchP8opvBy3Mi7Ce34nWjpBIwVTHfGYWQS9jwHDVRnpKKHJg7" crossorigin="anonymous"></script>

uncaught TypeError: $ is not a function

(function( $ ) {
  "use strict";

  $(function() {

    //Your code here

  });

}(jQuery));

Uncaught TypeError: $ is not a function

<script src='jquery.js'></script>    
if (typeof $ == 'undefined') {
   var $ = jQuery;
}

Uncaught TypeError: $(...).jstree is not a function

<script src="/path/to/jstree.min.js"></script>
<script>
    jQuery(function($) {
         ("#divtree").jstree();
    });
</script>

uncaught TypeError: $ is not a function

(function($){

  $(document).ready(function(){
      // write code here
  });

  // or also you can write jquery code like this

  jQuery(document).ready(function(){
      // write code here
  });

})(jQuery);

uncaught TypeError: $ is not a function

(function ($) {
   $(document).
}(jQuery));

Uncaught TypeError: $(...).steps is not a function

1

jquery.steps.js is loaded way after your initialize-steps.js

<script src="/files/js/views/person/initialize-steps.js"></script>
....
<script src="/files/bower_components/jquery.steps/js/jquery.steps.js"></script>
You need to load initialize-steps.js after it

<script src="/files/bower_components/jquery.steps/js/jquery.steps.js"></script>
<script src="/files/js/views/person/initialize-steps.js"></script>