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• how can i tell if a javascript function works across browsers

  - by lowellk

  How can I tell if a given javascript function will work across browsers? For instance, I want to use String.trim() and I see that it works in Firefox, but will it work in all the other major browsers? I imagine there is a good doc online somewhere, but I can't find it.

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• How to get only the first row from a java.sql.ResultSet?

  - by llm

  I have a ResultSet object containing all the rows returned from an sql query. I want to be able to (in the java code, NOT force it in the SQL) to be able to take a ResultSet and transform it so that it only contains 1 (the first) row. What would be the way to acheive this? Also, is there another appropriate class (somewhere in java.sql or elsewhere) for storing just a single row rather than trimming my ResultSet? Thanks!

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• How to perform an action when file changed?

  - by ZeissS

  Hi, I want to create a script that checks an URL and perform an action (download + unzip) when the "Last-Modified" header of the remote file changed. I thought about fetching the header with curl but then I have to store it somewhere for each file and perform a date comparison. Does anyone have a different idea using (mostly) standard unix tools? thanks

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• How to register some URL namespace (myapp://app.start/) for accessing your program by calling a URL

  - by Ole Jak

  So I want to create an Android app so it would be registered somewhere in android OS (or just would start on system start) and when phone user clicks on special button on a web page inside a web browser a la: <a href="myapp://mysettings">Foo</a> my app would pop up and run using the params sent in that URL. So how do I do such thing? I need a tutorial with code!

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• jquery document height reported incorrectly by IE (on XP) first time

  - by Zhami

  I'm having a "first time" problem with IE, which reports a different value for $(document).height(); when the page first loads versus subsequent queries. The difference is 17 pixels regardless of the opening size of the window -- on document ready, the height reported is 17 pixels larger than is subsequently reported. I wonder if this is an artifact of some aspect of my page (some margins or paddings somewhere), but so far can't account for 17 pixels.

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• positioning image using css

  - by TomBs

  hi, i really need to place an image somewhere in the page (100 pixels from the left side for example) but i want to control where the center of the image will be, when i use left:100px; , the image is positioned 100px from its left edge and not from its center... is there a way i can choose where the center of the image will be and not the left/right edge?

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• Retrieving webmethod parameter values from Application_BeginRequest or Application_EndRequest

  - by Ash

  Is there a way to retrieving parameter names and values passed to a web method from Request object? I've read somewhere that you need extra code to access the soap body. Any known workarounds to be able to see the soap body from Application_BeginRequest? Thanks!

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• Can you intercept a MMS SMS message and extract the image on Android?

  - by Philosophistry

  I want to basically intercept a text message that has an image attached, and save that somewhere automatically. Can this work on Android?

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• I wrote a new X11 keyboard layout file, how do I get my system to recognize it?

  - by grimborg

  I like to configure my keys my way, so I wrote a keyboard symbols file and I put it in /usr/share/X11/xkb/symbols/cat I use it by running setxkbmap cat -variant dvorak (and it works), but it doesn't show up in the console configuration (dpkg-reconfigure console-setup) nor in the Gnome keyboard settings... nor anywhere else, so I have to run setxkbmap every time. I suppose that I have to register it somewhere, but where? Any hints? Thanks!

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• [Errno 10061] No connection could be made because the target machine actively refused it

  - by user551717

  I've tried to connect to my local machine every time I try and run my program. I am a nub, so it's probably a simple mistake somewhere. def connect(self): self.conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM) self.conn.connect((self.host,self.port)) That is the code causing the error. The host and port are defined. Why is it giving me this error report? [Errno 10061] No connection could be made because the target machine actively refused it

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• Session management in Rails (2.3)

  - by JussiR

  Apparently, after upgrading to Rails 2.3 my session storage has stopped working. I used to have this: session :session_expires = 3.years.from_now in my application_controller.rb, but now every time i close the browser (chrome) the session expires. I read from somewhere that session_expires would have changed to expire_after, but session :expire_after = 3.years.from_now didn't do any good eihter.

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• How to check if a couchdb document exists (without retrieving it)?

  - by karlthorwald

  How can I just check if a document exists, mabye get the revision, but not make couchdb send the body of the document? I remember I saw this explained somewhere but I cannot find it.

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• browser instant updates with ajax/jquery

  - by wcpro

  I'm trying to reverse engineer how facebook handles their notifications, where when you get a message you get instantly notified via the browser. I've fiddled with it for a little bit and realized that there is always a pending GET request "listening" if you will to some sort of update from the server. This appears to be some sort of observer pattern. I was just wondering if this pattern was documented somewhere.

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• How to add a cross-browser mouse wheel function to a div in javascript?

  - by Shaunwithanau

  I am trying to stop the default mouse wheel event that is called on the window and on a div and call my own function instead on the div. I need this to be cross-browser (without the use of a library. I know I need to use an eventListener and I think have to use both onmousewheel and DOMMouseScroll (for FF) but I think am getting caught up in the implementation somewhere. I appreciate any and all help.

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• jQuery selector - what is faster?

  - by christianhaller

  Hi, $('#content td#foo').show(); $('td#foo').show(); The td is somewhere deep in the content div. What is faster?

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• Object relationships

  - by Hammerstein

  This stems from a recent couple of posts I've made on events and memory management in general. I'm making a new question as I don't think the software I'm using has anything to do with the overall problem and I'm trying to understand a little more about how to properly manage things. This is ASP.NET. I've been trying to understand the needs for Dispose/Finalize over the past few days and believe that I've got to a stage where I'm pretty happy with when I should/shouldn't implement the Dispose/Finalize. 'If I have members that implement IDisposable, put explicit calls to their dispose in my dispose method' seems to be my understanding. So, now I'm thinking maybe my understanding of object lifetimes and what holds on to what is just wrong! Rather than come up with some sample code that I think will illustrate my point, I'm going to describe as best I can actual code and see if someone can talk me through it. So, I have a repository class, in it I have a DataContext that I create when the repository is created. I implement IDisposable, and when my calling object is done, I call Dispose on my repository and explicitly call DataContext.Dispose( ). Now, one of the methods of this class creates and returns a list of objects that's handed back to my front end. Front End - Controller - Repository - Controller - Front End. (Using Redgate Memory Profiler, I take a snapshot of my software when the page is first loaded). My front end creates a controller object on page load and then makes a request to the repository sending back a list of items. When the page is finished loading, I call Dispose on the controller which in turn calls dispose on the context. In my mind, that should mean that my connection is closed and that I have no instances of my controller class. If I then refresh the page, it jumps to two 'Live' instances of the controller class. If I look at the object retention graph, the objects I created in my call to the list are being held onto ultimately by what looks like Linq. The controller/repository aside, if I create a list of objects somewhere, or I create an object and return it somewhere, am I safe to just assume that .NET will eventually come and clean things up for me or is there a best practice? The 'Live' instances suggest to me that these are still in memory and active objects, the fact that RMP apparently forces GC doesn't mean anything?

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• Outputcache - how to determine optimal value for duration?

  - by Steve

  I read somewhere that for a high traffic site (I guess that is a murky term as well), 30 - 60 seconds is a good value. Obviously I could do a load test and vary the values, but I couldn't find any kind of documentation on this. Most samples have a minute, a couple of minutes. There's no recommended range. Is there something on msdn or anywhere that talks about this?

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• load balance timeout SQL connection string

  - by george9170

  It seems that if there is a sql memory leak somewhere and you dont have time to find it you can use the load balance timeout option in a sql connection string to destory the connection after x seconds. Am i right in assuming I can set the load balance time out to 30-40 seconds and then hunt for the leak latter, while in the mean time the leak will not affect my application too much.

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• Get current US tax-rates list.

  - by Shimmy

  I am creating a pricing program. I need to calculate the amounts according to the current tax list in the US (in various places). I want to have a button 'Update taxes' in the administrative settings of the application, so when the user clicks it, it should download from somewhere the active tax amounts. So I actually want to have a function decimal GetTax(string zip). Any resources, ideas are welcommed. Thanks

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• Adding procedural C openGL functions to an iPhone project

  - by user309595

  I want to add a few drawing functions to an iPhone project for drawing things. Something like drawTile(x,y,len,wid); which would call openGL to draw a box somewhere. I should just be able to write a procedural C file to do this but the openGL libraries are objective C and I'm getting weird errors. Do I have to make a class for all of my drawing commands and call class methods?

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• riched32.dll or riched20.dll sourcode

  - by genesys

  Is the sourcecode of riched32.dll or riched20.dll available somewhere If not - what could I do if i want to create a richedit textfield that behaves slightly different (like changing the control for the scrollbars, such that i can change the size and positions of them from outside) thanks

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• jquery.hover on iphone

  - by Sam

  I use jquery.hover to toggle a class when someone mouses over a link. On the iphone when someone taps the link, it toggles the class on, but it doesn't ever toggle the class off until they tap somewhere else.

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• What is the use of . (dot) and -> operators in c. Are they the same?

  - by Idlecool

  I am about how to use the "." and "-" operators in c while working with structures. Can anyone please explain me how do both these operators differ or they both are same. Is there somewhere else these operators can be used apart from structures?

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• Test if links are external with jQuery / javascript?

  - by Matrym

  How do I test to see if links are external or internal? Please note: I cannot hard code the local domain. I cannot test for "http". I could just as easily be linking to my own site with an http absolute link. I want to use jQuery / javascript, not css. I suspect the answer lies somewhere in location.href, but the solution evades me. Thanks!

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• SEO - List of links - Farmlinking?

  - by Rafael Carvalho

  I'd like to know if listing a set of partner sites/blogs is useful for the pagerank growth. Does Google see it as an incorrect act? I read somewhere that if people exchange links, google seeks it and marks as a bad technique. If it doesn't matter, is the content of the linked site relevant?

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