Best practice for AJAX quieries

Oh dude!JavaScript Cookie v2.2.0
js.cookie will save you a ton of headache with the csrf_protection! I discovered it 2-3 weeks ago, before I tried to avoid ajax or wrote exceptions in the csrf_exclude_uris
$.ajax({
url: base_url + 'community/edit_post',
type: 'POST',
data: {
id: post_id,
csrf_token: Cookies.get('csrf_cookie')
},
dataType: 'json'
}).fail(function (result) {
alert(result.responseText)
});

You can see things I made with codeigniter here: itart.pro its not overly impressive as I have very little time to learn.