what does "replace it with fresh markup before calling refresh" mean?

Question

very quick newbish question here... In the jquery-mobile docs, it says that Note that the refresh() method only affects new nodes appended to a list. This is done for performance reasons. Any list items already enhanced will be ignored by the refresh process. This means that if you change the contents or attributes on an already enhanced list item, these won't be reflected. If you want a list item to be updated, replace it with fresh markup before calling refresh. What does exactly does the bolded part means, and how to do I get achieving that? (Probably goes without saying that I don't have a lot of javascript or HTML experience :) ) JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

It means: You have a list containing data. if you run refresh() nothing happens. if you append new data to the list (this is adding fresh markup) when you run refresh() it will only update the data you just added and skip exsiting data.