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• Generate encoding String according to creation order.

  - by Tony

  I need to generate encoding String for each item I inserted into the database. for example: x00001 for the first item x00002 for the sencond item x00003 for the third item The way I chose to do this is counting the rows. Before I insert the third item, I count against the database, I know there're already 2 rows, so the next encoding is ended with 3. But there is a problem. If I delete the second item, the forth item will not be the x00004,but x00003. I can add additional columns to table, to store the next encoding, I don't know if there's other better solutions ?

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• Does JSLint parse DOM functions?

  - by Paul

  I tried to use the parse() function of JSLint to parse three pieces of JavaScript code: function(b, c){var a = b + c; return a; } window.addEventListener('click', click_hanlder, true); document.documentElement.innerHTML; Here's the code, which is copied and pasted from the JSLint self-parse example: ` try { parse = make_parse(); var source = "something to parse";//replaced by the code above tree = parse(source); if (tree) { document.write(JSON.stringify(tree, ['key', 'name', 'message', 'value', 'arity', 'first', 'second', 'third', 'fourth'], 4)); } } catch (e) { document.write(JSON.stringify(e, ['name', 'message', 'from', 'to', 'key', 'value', 'arity', 'first', 'second', 'third', 'fourth'], 4)); } ` The output: returns a correct tree. returns a tree with only one node of "window". crashes the browser. I'm wondering whether JSLint doesn't support DOM function.

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• Help with Jquery function

  - by Madhur Ahuja

  Ok, Here is my problem: I have this function in a third party javascript library defined as RedirectLink(a,b,c,d,e) where a,b,c,d,e are strings. I also have a link in my webSite which is again autogenerated (And I can't change it) <a href="javascript: RedirectLink("1", "2", "3" ,"4" ,"5")" id="mylink" > What I need to do is, read this anchor's (mylink) href and I need to call RedirectLink function such as javascript: RedirectLink("1", "2", "3" + param, "4" , "5"). where param will come from query string. The first part is easy, reading the href but how to alter the third parameter ?

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• Scan for first zero bit (Assembly)?

  - by cthulhu

  I have some numbers in AH, AL, BL, BH registers. I need to check whether there is 0 bit in each of the registers in left half of the number. If yes, then put into check variable value 10 else -10. How can I do this? I tried something like that: org 100h check dw 0 mov ah, 11111111b mov al, 11111111b mov bl, 11111111b mov bh, 11111111b mov check, -10 shr ah, 4 shr al, 4 shr bl, 4 shr bh, 4 cmp ah, 0Fh jz first first: cmp al, 0Fh jz second second: cmp bl, 0Fh jz third third: cmp bh, 0Fh jz final final: mov check, 10 ret

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• 404 detection in JavaScript

  - by Vadim

  In my JavaScript I'm trying to redirect to third party page. It can open a page either in a new window or inside a frame depends on a user settings. Something like this: if (newWindow) { window.open(url, targer); } else { theFrame = url; } What I want to do is to display my custom page in case a third party site is down or page is unavailable. Basically in case of 404 error. What's the best way to solve this problem?

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• Calling consecutive java tasks in a shell script

  - by Bigtwinz

  Hi all, This may be a rudimentary question but the answer was not readily available. I'd like to create a shell script that calls 3 tasks consecutively, but wait till the previous task is complete. Like so: a. call first Java program via ant b. call third party Java application c. call third Java program via ant I'm wondering if there is a way to check and ensure a. is done before b. is called and same for b. and c. thanks

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• A $_GET input paramter that's an Array

  - by donpal

  I'm trying to pass 3 parameter to a script, where the 3rd parameter $_GET['value3'] is supposed to be an array $_GET['value1'] $_GET['value2'] $_GET['value3'] //an array of items I'm calling the script like this: (notice my syntax for value3, I'm not sure it's correct) http://localhost/test.php?value1=test1&value2=test2&value3=[the, array, values] I then use a foreach to hopefully loop through the third parameter value3 which is the array //process the first input $_GET['value1'] //process the second input $_GET['value2'] //process the third input $_GET['value3'] which is the array foreach($_GET['value3'] as $arrayitem){ echo $arrayitem; } but I get the error Invalid argument supplied for foreach() I'm not sure if my methodology is correct. Can some clarify how you'd go about doing the sort of thing

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• How to parse a string to an integer without library functions?

  - by dack

  Hi, I was recently asked this question in an interview: "How could you parse a string of the form '12345' into its integer representation 12345 without using any library functions, and regardless of language?" I thought of two answers, but the interviewer said there was a third. Here are my two solutions: Solution 1: Keep a dictionary which maps '1' = 1, '2' = 2, etc. Then parse the string one character at a time, look up the character in your dictionary, and multiply by place value. Sum the results. Solution 2: Parse the string one character at a time and subtract '0' from each character. This will give you '1' - '0' = 0x1, '2' - '0' = 0x2, etc. Again, multiply by place value and sum the results. Can anyone think of what a third solution might be? Thanks.

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• MYSQL - REMOVE HTML TAGS from Record

  - by Dam

  Need help to form the MYSQL query from table one column having the bellow content Row1 : this is first <a href='mytext.txt'>row</a> from the table Row 2 : THis is the second row <img src ='mytext.jpg'> my image is there Row 3 : <p>This is the Third row my mytext is there </p> Row 4 : <p class='te_mytext'>This is the Third row my text is there </p> this is the table rows i try to search the keyword as 'mytext' my query is SELECT * from table WHERE colmn_name ` like '%mytext%' " i will get all the 4 rows as result but the result is wrong ..... need to get the correct output as only Row 3 the reason this row only having the mytext inside the content all other are not in content but mytext having in all rows how can i write the Query MYSQL please help me (NOT in PHP only MYSQL )

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• JQuery identify current CSS background-image in three-state icon/button?

  - by T9b

  Hi I have three images being used to indicate an application icon state and I'm attempting to use css to do this. No problem with the original or hover states: #myDIV { background-image: url(icons/homeBlack.png); } #myDIV:hover { background-image: url(icons/homeWhite.png); } but I need to do two other things: 1) when the item is clicked it should use the third image $("#myDIV").click(function(event){ // change this button $(this).css("background-image", "url(icons/homeBlue.png)"); }); 2) if it is clicked again it should not apply the third image again because it's already applied - so it needs to check if it has been applied My questions are: 1) simply am I missing a css trick somewhere or is Jquery the best way to do this? 2) can I check which background-image is in place and how? I can't seem to find anything in JQuery that would allow me to determine which image is "currently" in place. Thanks in advance for any help.

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• How do I dynamically define an instance variable?

  - by Moses

  Hi everyone, I have two classes (class1 and class2) that just store data, no methods. I have a third class that has an instance variable that, depending on some user input, will be set to one of the two classes. So, in the third class I declare the variable generically as NSObject *aClass; and during runtime set it to whatever it should be. aClass = [[Class1 alloc] init]; // or aClass = [[Class2 alloc] init]; However, when I try to access fields from aClass NSString *str = aClass.field1; It gives me the error: request for member 'field1' in something not a structure or a union. Field1 is declared in both class1 and class2. When I try to cast aClass aClass = (Class1 *) aClass; it gives the same error. What am I doing wrong, is there a better way to do this?

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• What's the VS shortcut for type hierarchy?

  - by Abhijeet Kashnia

  What's the equivalent of eclipse's Ctrl+T for Visual Studio? Preferably no third party tools.

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• Java - Handling Non-Blocking Calls

  - by sarav

  In my application I am using a third-party API. It is a non-blocking method which returns immediately. I have a collection of elements over which I have to invoke this method. Now, my problem is that I have to find a way till all the method execution gets completed and do my next operation. How can I handle this? I cannot modify the third-party API. In short it looks like this for(Object object: objects){ methodA(object); //this is a non-blocking call and returns immediately } // here I want to do my next task only after all the methodA calls completed execution

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• Concatenating a Text in front of Individual Database Records with Tcl

  - by DFM

  Hello: In short, currently I am using the following code to pull records from multiple tables in a Sqlite Db and insert them in a single combobox ($SearchBar): set SrchVals1 [db eval {SELECT DISTINCT Stitle From Subcontract Order By Stitle ASC}] set SrchVals2 [db eval {... set SrchVals3 ... set SrchValsALL [concat $SrchVals1 $SrchVals2 $SrchVals3] $SearchBar configure -value $SrchValsAll For the variable "SrchVals1", I am trying to figure out a way to concatenate the text "Sub: " to each individual record in SrchVals1. For example, if SrchVals1 shows the following records in the combobox: First Title Second Title Third Title I would like to concatenate so that the records in the combobox look like this: Sub: First Title Sub: Second Title Sub: Third Title I understand that I might have to use a foreach statement; however, I am having no luck writing one that adds "Sub: " in front of each record, as opposed to one. This seems like something that should be pretty easy, but I cannot seem to figure it out. Does anyone know how I can achieve these results? Thank you, DFM

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• Best choice for off-site backup: dd vs tar

  - by plok

  I have two 1TB single-partition hard disks configured as RAID1, of which I would like to make an off-site backup on a third disk, which I am still to buy. The idea is to store the backup at a relative's house, considerably far away from my place, in the hope that all the information will be safe in the case of a global thermonuclear apocalypse. Of course, this backup would be well encrypted. What I still have to decide is whether I am going to simply tar the entire partition or, instead, use dd to create an image of the disks. Is there any non-trivial difference between these two approaches that I could be overlooking? This off-site backup would be updated no more than two or three times a year, in the best of the cases, so performance should not be a factor to be pondered at all. What, and why, would you use if you were me? dd, tar, or a third option?

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• IE8: drag'n'drop files to a webpage

  - by jonny

  Is it possible in IE8 without using third party plugin like Java?

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• About curse of dimensionality

  - by Dan

  My question is about this topic I've been reading about a bit. Basically my understanding is that in higher dimensions all points end up being very close to each other. The doubt I have is whether this means that calculating distances the usual way (euclidean for instance) is valid or not. If it were still valid, this would mean that when comparing vectors in high dimensions, the two most similar wouldn't differ much from a third one even when this third one could be completely unrelated. Is this correct? Then in this case, how would you be able to tell whether you have a match or not?

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• Linq Order By a subtable

  - by Michael

  Hello, My question is how to sort a Linq query by a sub table: Table Apps: - app_id - name Table AppStatus: - app_status_id - app_id - severity - status_date I would like to have a query with all the apps, sorted by the last status severity: app_id name 1 first 2 second 3 third app_status_id app_id severity status_date 1 1 5 12-4-2010 2 1 2 15-4-2010 3 2 7 10-4-2010 4 3 3 13-4-2010 Now i want it sorted like: app_id name 3 third 1 first 2 second Can anyone help me with a LINQ query for this. I tried the following already, but that didn't work: var apps = from apps in dc.Apps orderby apps.AppStatus.LastOrDefault().severity select apps;

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• Wildcard App IDs for iPhone/iPod Touch Apps

  - by Can Berk Güder

  I'm writing my third app, and I already have an app in the App Store, but I still don't get this App ID business. I created the App IDs for my first two applications like this: XXXXXXXXXX.me.cbg.FirstApp YYYYYYYYYY.me.cbg.SecondApp but then Apple introduced the App ID wizard, which I used to create the App ID and provisioning profiles for my third application: ZZZZZZZZZZ.* So my question is: What is the "proper" way of creating App IDs for three completely independent apps? Should I use the XXXXXXXXXX.* format or XXXXXXXXXX.me.cbg.*? Should I create three different App IDs, or just one wildcard ID?

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• Are memory leaks ever ok?

  - by Imbue

  Is it ever acceptable to have a memory leak in your C or C++ application? What if you allocate some memory and use it until the very last line of code in your application (for example, a global object's deconstructor)? As long as the memory consumption doesn't grow over time, is it OK to trust the OS to free your memory for you when your application terminates (on Windows, Mac, and Linux)? Would you even consider this a real memory leak if the memory was being used continuously until it was freed by the OS. What if a third party library forced this situation on you? Would refuse to use that third party library no matter how great it otherwise might be? I only see one practical disadvantage, and that is that these benign leaks will show up with memory leak detection tools as false positives.

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• including library and dll into c++ project

  - by user1612986

  i have a third party library (say tp.lib) and the third party dll (say tp.dll) which i need to use in my C++ project (my project is a dll project, lets call it my.dll). i have include the library with the #pragma comment(lib, "libraryname") in the header file and also included the path of the library file in the configurationproperties-linker-additional library directories in my c++ visual studio project. the code compiles okay. but fails to execute. when i use depends to check if i am missing someting i observe that the tp.dll is missing from my.dll. the tp.dll resides in the same library folder where the tp.lib resides. my quesiton is what should i do so that tp.dll get included to my.dll thanks in advance

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• Can I use WCF in this case?

  - by BDotA

  We have a third party application that provied its web services to us by ASMX and it is created at the time of .NET 1.1 in the old days we were using VB 6.0 and connected to it by a PocketSOAP, etc... bt now we want to replace the VB 6.0 with C# 3.5 WinApps and still use that third party web services. so I wish to know what are my options for doing this? which one do you recommend and which one has a faster learning curve? Thanks All.

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• How to use LINQ To Entities for filtering when many methods are not supported?

  - by Kinderchocolate

  Hi, I have a table in SQL database: ID Data Value 1 1 0.1 1 2 0.4 2 10 0.3 2 11 0.2 3 10 0.5 3 11 0.6 For each unique value in Data, I want to filter out the row with the largest ID. For example: In the table above, I want to filter out the third and fourth row because the fifth and sixth rows have the same Data values but their IDs (3) are larger (2 in the third and fourth row). I tried this in Linq to Entities: IQueryable<DerivedRate> test = ObjectContext.DerivedRates.OrderBy(d => d.Data).ThenBy(d => d.ID).SkipWhile((d, index) => (index == size - 1) || (d.ID != ObjectContext.DerivedRates.ElementAt(index + 1).ID)); Basically, I am sorting the list and removing the duplicates by checking if the next element has an identical ID. However, this doesn't work because SkipWhile(index) and ElementAt(index) aren't supported in Linq to Entities. I don't want to pull the entire gigantic table into an array before sorting it. Is there a way?

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• How to publish to Facebook fan/business pages (not user profiles)

  - by Jeff Putz

  I'm trying to figure out if fan/business pages are conceptually similar to regular user pages. My end goal is to publish events from a third-party Web site (new content, announcements, etc.) into the FB page that promotes the third-party site. I'm not sure where to start exactly. Been looking at the .NET Facebook SDK, and it seems focused on FB apps and authentication. Not sure where I should be looking. Help is appreciated!

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• Authentication Sceme for RESTful API used by desktop app.

  - by user346087

  I'm providing a RESTful API. This API is used by a third party desktop application. The API is currently secured using Basic Authentication. That isn't very secure because the credentials have to be stored in the client application. The communication between the desktop and API can also easily be intercepter. The desktop application also communicates with a third party server (run by the publisher of the desktop application) I am unable to figure out how the secure the API in a good way. Ideas?

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