Question

I currently have a website source code (no control over the source) which contains certain content that needs to be manipulated. This would be simple on the surface, however there is no unique ID attribute on the tag in question that can uniquely identify it, and therefore allow for further traversal.

Here is a snippet of the source code, surrounding the tag in question.

   ...
    <td width="100%"> 

     <!--This table snaps the content columns(one or two)--> 

     <table border="0" width="100%"> 
   ...

Essentially, the HTML comment stuck out as an easy way to gain access to that element. Using the JQuery comment add-on from this question, and some help from snowlord comment below, I have been able to identify the comment and retrieve the following output using the ‘dump’ extension.

$('td').comments().filter(":contains('This table snaps the content columns(one or two)')").dump();

returns;

jQuery Object {   
    0 = DOMElement [ 
        nodeName: DIV
        nodeValue: null
        innerHTML: [ 
            0 = String: This table snaps the content columns(one or two)
        ]
    ] 
}

However I am not sure how to traverse to the sibling element in the DOM.

This should be simple, but I haven’t had much selector experience with JQuery. Any suggestions are appreciated.

Answer 1

I am thinking you could use the siblings method:

$('td').comments().siblings('table').yourcode...

From the docs:

Given a jQuery object that represents a set of DOM elements, the .siblings() method allows us to search through the siblings of these elements in the DOM tree and construct a new jQuery object from the matching elements.

The method optionally accepts a
selector expression of the same type
that we can pass to the $() function.
If the selector is supplied, the
elements will be filtered by testing
whether they match it.