Getting CSRF token in external js file
you can store this value to hidden input or any hidden element and then you can access it in external js file..
<input type ='hidden' name='what_you_want' id='whatever_you_like' value='<?php echo $this->security->get_csrf_token_name(); ?>'><input type ='hidden' name='what_you_want1' id='whatever_you_like1' value='<?php echo $this->security->get_csrf_hash(); ?>'>and you can get it in js like this
var tmp = $('#whatever_you_like').val();var tmp1 = $('#whatever_you_like1').val();var save_data = { tmp: tmp1, 'field':field, 'editedValue':editableObj.innerHTML, 'id':id };
Define JS constant in header file like
var CSRF_NAME = '<?php echo $this->security->get_csrf_token_name(); ?>'
var CSRF_TOKEN = '<?php echo $this->security->get_csrf_hash(); ?>'
then just call CSRF_NAME or CSRF_TOKEN any where in external or inline JS.