Question

I watched a pdc session by Stephen Walther and in the presentation he was referencing the JQuery js file like the following:

<asp:ScriptManager id='sm1' runat='server'> <Scripts>     <asp:ScriptReference Path='~/Scripts/JQuery.js' /> </Scripts> </asp:ScriptManager> 

Is there a advantage or disadvantage to doing it the above way instead of just using a link in the head section of the page.

He was also putting the following into the javascript section of his sample pages to run JQuery:

<script type='text/javascript'>  function pageLoad() {    $(':text').css('background-color','yellow'); } </script> 

Is the pageLoad necesary above? He mentioned that it is from the Microsoft AJAX library and it waits for the DOM to be finished loading, but I thought the $ symbol in JQuery is just a shorthand for waiting for the DOM to be finished loading.

Answer 1

$(document).ready() and pageLoad() are not the same!

http://encosia.com/2009/03/25/document-ready-and-pageload-are-not-the-same/

From the article:

pageLoad() is called just after the DOM has finished loading. this isn’t the only point at which pageLoad() is called though: It is also called after every partial postback.

In the case of initialization code that should run once, $(document).ready() is the ideal solution.