tags:

views:

238

answers:

1
Q: 

E4X filter by text content?

I'm trying to filter some XML in JavaScript using E4X and have some specific needs. Given the following:

    var xml = <body>
      <div>
        <p>This is some text that I have.</p>
      </div>
    </div>;

I want to search the document for paragraphs starting with "This is some text".

Currently I can the following to get at the paragraph:

xml..div(p.text().toString().indexOf("This is some text") === 0)

However, the "real" XML is much more complex (think: a regular web page). There is no guarantee that there will be a div directly parenting the paragraph(s) in questions. There may be other paragraphs before/after the paragraph(s) in question within the same parent element.

Any ideas?

+2  A: 

Use the double dot operator to search for all <p> nodes of any nesting leveling and then filter out the nodes to only include ones that start with your desired string. You were close, you just need to get rid of the <div> since, as you've stated, the <div> might not be present.:

xml..p.( text().toString().indexOf("This is some text") == 0 );
darronschall  2009-06-29 17:31:06

related questions

What JavaScript patterns do you use most?
Javascript events
What style do you use for creating an "class" in JavaScript?
Graphing JavaScript Library
What's the difference in closure style
Getting the text from a drop-down box
How to specify javascript to run when ModalPopupExtender is shown
Length of Javascript Associative Array
How Do I Post and then redirect to an external URL from ASP.Net?
How to set up a CSS switcher in ASP.NET
Wrapping lists into columns
Javascript keyboard events primer? (or rather: help me with my custom dropdown)
Http Auth in a Firefox 3 bookmarklet
Best Debugging Tools for JavaScript/xulrunner Development
How can I turn a string of HTML into a DOM object in a Firefox extension?
Call ASP.NET Function From Javascript?
Javascript troubleshooting tools in IE
MAC addresses in JavaScript
Capturing TAB key in text box
CSS Background Color in Javascript
How can I make the browser see CSS and Javascript changes?
Triple Quotes? How do I delimit a databound Javascript string parameter in ASP.NET?
ASP .Net Custom Client-Side Validation
What JavaScript library would you choose for a new project and why?
Detecting font in JavaScript