how react-virtualized in different than normal reactJs. Can anyone please explain me with an example ?
Thanks in advance.
Author of react-virtualized here. I think you might find the slides from a recent presentation I made about the library helpful. I suggest starting here and stepping through the slides (by pressing the right arrow key): https://bvaughn.github.io/forward-js-2017/#/10/0
I think this talk will be posted to the Forward JS YouTube channel soon but as of now, only the slides are available.
In short, react-virtualized helps improve the performance of your React application by limiting the number of calls to render as well as the number of DOM elements created and added to the page.
Edit: Link to the Forward JS talk
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I've got a Canvas3D which holds a couple Spheres. Is there a way to detect when the user clicks on a sphere?
In Java3D this is known as "Picking" you should read the section on the Java3D API Tutorial if you haven't already. Here is the section on Interacting with objects, you're looking for page 35 by the way:
http://java.sun.com/developer/onlineTraining/java3d/j3d_tutorial_ch4.pdf
Heres the entire tutorial:
http://java.sun.com/developer/onlineTraining/java3d/
Hopefully this answer didn't come too late! I just started Java3D myself, hope this helped!
I see this referenced a lot: http://ajaxify.com/run/crossframe/
And I noticed now it's no longer working for the IFRAME (child) to change the parents hash.
I've been spending a few hours trying various things wondering why this isn't working anymore -- then I finally realized that the example I originally based it on was down too.
Can anybody confirm?
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I need to use a cross domain iframe to take care of an order upload form that our shopping cart doesn't support, and I need the form to return an order ID to the parent, so that I can associate the data between the two servers.
Any recommendations or directions to head in would be appreciated.
I'm not looking for a shortcut or somebody to do my work. I've been reading all day... I just need a nudge in the right direction.
Thanks!
It is partly browser-specific. For instance, some browsers don't allow a nested child frame (iframe within an iframe) to change its parent's fragment. See this blog entry. But the basic functionality still works in recent browsers. This demo, which has an iframe change its parent, and vice versa (single level) works fine in Firefox 3.5.9 and Chrome 5.0.375.99.
The demo you gave also works both ways in that version of Firefox. It doesn't allow the child to change the parent in Chrome. The main difference seems to be that the working one uses parent.location, while the broken one uses parent.window.location.hash.
The best solution for recent browsers is postMessage. If necessary, you can also use a server proxy.
I'm in the process of adding some much needed client side form validation to a website I'm working on. We're currently using YUI. YUI doesn't have any form validation built in as I can see(prove me wrong).
I googled it
http://code.google.com/p/yui-form-validator/
It's not important that it's a YUI-extension as long as it plays along with YUI in a civilized manner.
What should I go for? Anyone out there with experience and an opinion?
There's a module in the gallery: http://yuilibrary.com/gallery/show/form
I haven't used it, but it looks pretty good to me.
Looks like we'll go for http://validatious.org/
Lightweight and standalone. Will not interfere with YUI.
I'm inserting images to editor with id param. after that i'm trying to access it with Dom.get('id'), but it returns null.
I understand that it returns null because it works under parent window's scope. Is there any standard way to access it?
For specialized YUI-related questions, and especially if you don't get the answer you're looking for on StackOverflow, you may want to post to http://yuilibrary.com/forum -- the YUI devs and many YUI specialists spend time there, and that's typically the best place to get YUI-related help.
I want to add a calendar control to a page that already includes Prototype and Scriptaculous. Not happy with any of the Prototype ones I could find, I'm considring using the YUI Calendar widget.
I this likely to cause any problems?
We have worked hard to make sure that YUI is safe to use with any other library. We namespace everything, as HermanD says, under only one required global (YAHOO) and one optional one (YAHOO_config). We don't modify native objects. And even though Protoype does modify native prototypes, we code defensively so that this doesn't break YUI functionality.
If you find any bugs in using the two together, please let us know.
Regards,
Eric
YUI Team
By default everything in YUI is within the YAHOO namespace, so as long as you sensibly apply namespaces to anything you use from YUI, I would have thought you should be ok.
See: http://developer.yahoo.com/yui/yahoo/
I successfully used the YUI tab control in an app I was already using Prototype and Scriptaculous in and had no problem. The weight of all that is a bit much though if you're looking at a publicly available app. I wouldn't care so much about an internal app, say for a company, but you might want to think about how much JavaScript you're making end users download and the number of separate files they're having to download for the page.