Selectors

attribute

Select all div elements within a div within messages_container which have a class of message with an attribute of data-persistent:

jQuery("#messages_container > div > div.message[data-persistent]")

This example will set the attr:

jQuery("#messages_container > div > div.message[data-persistent] a").attr("href", "http://www.google.com/")

div

Select all div elements within messages_container which have an undo class:

jQuery('#messages_container > div.undo')...

find

var e = $('#id').find('i');
var e = $('#id').parent().find('i');
var e = $('#id').prev('.row').find('i');

nextAll

jQuery('#id').parent().nextAll(".errors").text('hello');