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  • From the Tips Box: Waterproof Boomboxes, Quick Access Laptop Stats, and Stockpiling Free Free Apps and Books

    - by Jason Fitzpatrick
    Once a week we round up some great reader tips and share them with everyone. This week we’re looking at building a waterproof boombox, quick access to laptop stats in Windows 7, and how to stockpile free apps and books at Amazon. How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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  • Unconvert Text File from Binary Format

    - by Hammer Bro.
    I've got a rather large CSV file (~700MB) which I know to consist of lines of 27-character alpha-numeric hashes; no commas or anything fancy. Somehow, during its migration from Windows to Linux (via winSCP and then a few regular SCPs), it has converted into some kind of binary format I am unfamiliar with. If I open the file in vi, everything appears fine, and it says [converted] at the bottom, although I know it's not a line endings issue (and dos2unix doesn't help). If I 'head' the file, it looks proper except for a "ÿþ" at the beginning of the first line. If I open up the file in nano, however, I see the "ÿþ" at the start and then "^@" before every character (even newlines and EoF). If I try to re-save or copy the file (say via: head file.csv short.txt), this special encoding is preserved. I copied the first ten lines out of vi (which displays it properly) into my Windows clipboard via my SSH client, then pasted it into a new text file, test.txt. This file is visually identical when opened in vi (and similar through 'head', minus the "ÿþ"), although it's roughly half of the filesize. Additionally, file test.txt test.txt: ASCII text file short.txt short.txt: I have no idea what format this once-text file got converted to (it's notoriously hard to search the internet for symbols), but surely there must be some way to convert it back. Any ideas?

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  • Recommend a free temperature-monitoring utility for cores + video card, on Vista?

    - by smci
    Looking for your recommendations for a free temperature-monitoring utility, for my PC (Core 2) and graphics card for Vista. (Question reposted with the hyperlinks now I have 10 reputation). I don't want all the geeky details, I don't overclock, I don't see the need to mess with my fan speeds or motherboard settings, I just want something fairly basic to help with basic troubleshooting of intermittent overheats on video card and/or mobo: must run on Windows Vista (yes, don't laugh). ideally displays temperature when minimized to toolbar, and/or: automatically alerts me when temperature on either core or the video card exceeds a threshold ideally measures temperature of video card and system as well, not just the cores. HDD temperature is not necessary I think. logging is nice, graphs are also nice portability to Linux and Mac is nice Apparently Everest is the best paid option, but I'm not prepared to spend $40. I found the following free options, but no head-to-head at-a-glance comparison: CoreTemp (only does cores, not video card?) Open Hardware Monitor (nice graphs, displays when minimized to toolbar, no alerts) RealTemp (has alerts, works minimized, lightweight install) HWMonitor (no alerts, CNET: "[free version is] simple but effective") from CPUID CPUCool (not free: 21-day trialware, then $18) SpeedFan from Almico (too geeky, detail overload; CNET: "most users won't be able to make head or tail of the data this utility provides") Motherboard Monitor (CNET: not recommended, requires expert knowledge of your mobo, dangerous) Intel Thermal Analysis Tool (only does cores, not video card? has logging) Useful discussions I found: hardwarecanucks.com , superuser.com 1, 2 , forums.techarena.in (Update: I downloaded Real Temp 3.60 and it meets all my needs, the customizable alert temperature is great. Open Hardware Monitor seems to be the other one that mostly meets my needs, except no alerts; but it is portable. I tried SpeedFan but the interface is very cluttered, too much unnecessary detail (needs a Basic/Advanced mode and a revamp of the interface.) The answer to my underlying issue is nVidia Geforce LE 7500 video card which runs very hot.)

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  • HAProxy, health checking multiple servers with different host names

    - by Marco Bettiolo
    I need to load balance between multiple running servers with different host names. I cannot set-up the same virtual host on each one. Is it possible to have only one listen configuration with multiple server and make the Health Checks apply the http-send-name-header Host directive? I am using HAProxy 1.5. I came up with this working haproxy.cfg, as you can see, I had to set a different hostname for each health check as the health check ignores the http-send-name-header Host. I would have preferred to use variables or other methods and keep things more concise. global log 127.0.0.1 local0 notice maxconn 2000 user haproxy group haproxy defaults log global mode http option httplog option dontlognull retries 3 option redispatch timeout connect 5000 timeout client 10000 timeout server 10000 stats enable stats uri /haproxy?stats stats refresh 5s balance roundrobin option httpclose listen inbound :80 option httpchk HEAD / HTTP/1.1\r\n server instance1 127.0.0.101 check inter 3000 fall 1 rise 1 server instance2 127.0.0.102 check inter 3000 fall 1 rise 1 listen instance1 127.0.0.101:80 option forwardfor http-send-name-header Host option httpchk HEAD / HTTP/1.1\r\nHost:\ www.example.com server www.example.com www.example.com:80 check inter 5000 fall 3 rise 2 listen instance2 127.0.0.102:80 option forwardfor http-send-name-header Host option httpchk HEAD / HTTP/1.1\r\nHost:\ www.bing.com server www.bing.com www.bing.com:80 check inter 5000 fall 3 rise 2

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  • Creating a Logical network diagram

    - by user273284
    Im a student and I have been assigned the task of creating a logical network diagram for the following scenario There are 2 buildings, the first is the head office and the second is the branch. The data centre is in the head office, it contains domain controller, mail server, file server and a web server. it provides wired and wireless access to the staff. the branch building is new and it does not have a network. The two buildings must be connected using a VPN connection. The branch building will not have any servers but just network devices that will provide the connectivity, the users in the branch building will be connected to the head office over the VPN. I had created a diagram based on this scenario, but my teacher rejected it saying that it does not follow Cisco hierarchical Model and the servers were not placed correctly in the diagram. I just wanted some help in this matter so that I Can create my network diagram correctly. If anyone could upload a picture of how the logical diagram should be for this scenario will be helpful, any other resources would also be great.

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  • Silverlight Bing Maps - Pushpin

    - by user70192
    How do I make the Silverlight Bing Maps pushpin larger? The reason I want to make it larger is so that I can add more content into the head of the pushpin. However, I cannot figure out how to add the content I want to the head of the pushpin without it being cut off. Thank you,

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  • Mark text in HTML

    - by Alon
    Hi I have some plain text and html. I need to create a PHP method that will return the same html, but with <span class="marked"> before any instances of the text and </span> after it. Note, that it should support tags in the html (for example if the text is blabla so it should mark when it's bla<b>bla</b> or <a href="http://abc.com">bla</a>bla. It should be incase sensitive and support long text (with multilines etc) either. For example, if I call this function with the text "my name is josh" and the following html: <html> <head> <title>My Name Is Josh!!!</title> </head> <body> <h1>my name is <b>josh</b></h1> <div> <a href="http://www.names.com">my name</a> is josh </div> <u>my</u> <i>name</i> <b>is</b> <span style="font-family: Tahoma;">Josh</span>. </body> </html> ... it should return: <html> <head> <title><span class="marked">My Name Is Josh</span>!!!</title> </head> <body> <h1><span class="marked">my name is <b>josh</b></span></h1> <div> <span class="marked"><a href="http://www.names.com">my name</a> is josh</span> </div> <span class="marked"><u>my</u> <i>name</i> <b>is</b> <span style="font-family: Tahoma;">Josh</span></span>. </body> </html> Thanks.

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  • How to insert html in iframe

    - by Massimo Ugues
    Hallo all: I need to insert a html string in a iframe as shown below: .... var html = "<html><head><title>Titolo</title></head><body><p>body</p></body></html>" jQuery('#popolaIframe').click(function() { parent.$("#indexIframe")[0].documentElement.innerHTML = html; }); Is there a way to achieve this? Kind regards Massimo

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  • groovy compile error

    - by Bunny Rabbit
    class x{ public static void main(String[] args){ String x="<html><head></head></html>"; String arr[]=x.split("<head>"); String script="hi"; x=arr[0]+"<head>"+script+arr[1]; System.out.println(x); } } the above code when compiled as a java file compiles fine but when used a s a groovy file spits the error : org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed: D:\Garage\groovy-binary-1.7.1\groovy-1.7.1\bin\x.groovy: 4: Apparent variable 'a rr' was found in a static scope but doesn't refer to a local variable, static fi eld or class. Possible causes: You attempted to reference a variable in the binding or an instance variable fro m a static context. You misspelled a classname or statically imported field. Please check the spelli ng. You attempted to use a method 'arr' but left out brackets in a place not allowed by the grammar. @ line 4, column 10. String arr[]=x.split(""); ^ D:\Garage\groovy-binary-1.7.1\groovy-1.7.1\bin\x.groovy: 6: Apparent variable 'a rr' was found in a static scope but doesn't refer to a local variable, static fi eld or class. Possible causes: You attempted to reference a variable in the binding or an instance variable fro m a static context. You misspelled a classname or statically imported field. Please check the spelli ng. You attempted to use a method 'arr' but left out brackets in a place not allowed by the grammar. @ line 6, column 5. x=arr[0]+""+script+arr[1]; ^ D:\Garage\groovy-binary-1.7.1\groovy-1.7.1\bin\x.groovy: 6: Apparent variable 'a rr' was found in a static scope but doesn't refer to a local variable, static fi eld or class. Possible causes: You attempted to reference a variable in the binding or an instance variable fro m a static context. You misspelled a classname or statically imported field. Please check the spelli ng. You attempted to use a method 'arr' but left out brackets in a place not allowed by the grammar. @ line 6, column 28. x=arr[0]+""+script+arr[1]; ^ 3 errors D:\Garage\groovy-binary-1.7.1\groovy-1.7.1\bin

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  • Adding title in contentplaceholder adds second empty title tag

    - by boris callens
    My master page has a contentplaceholder in the head tag. Because I want my page's title to represent the function of the current page and because I want the title to be translated in the user's language I have added a title tag in the page's head's contentplaceholder. All jolly and good except that now there appears a second, empty title tag that off course isn't valid. Any ideas how to solve this?

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  • Git Svn Fetch More Revisions

    - by vigilant
    I am using git-svn for our svn repository. However, the repo is huge, so I first checked out the project like so: git svn clone svn://svn.server.com/project -s -r 12000:HEAD So, now I have only revisions 12000 to the current revision. I would like to checkout some more revisions, but the following does nothing: git svn fetch -r 11000:HEAD Is there a way to fetch older revisions?

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  • Is it possible to programatically catch JavaScript SyntaxErrors?

    - by Matty
    I don't think that this is doable, but wanted to throw it out to the community to confirm my suspicions. Let's say you're writing a program in another language like Python, PHP, or ASP. This program is intended to build another program written in JavaScript. However, the first program is unfortunately not immune to errors. So, occasionally, the program which builds the JavaScript program does some funky stuff and outputs a syntax error in the JavaScript source. Now some user goes and loads the program and it essentially halts, because the web browser running it can't properly parse the JavaScript. This user is probably not going to be happy. I wouldn't be. This brings me to my question. Is it possible to write an error handler that would catch these kind of syntax problems allowing the application to fail gracefully? Here's an example: <html> <head> <script type="text/javascript" charset="utf-8"> window.onerror = errorHandler; function errorHandler(a,b,c) { alert('horray! No wait, Booo!'); } vara jfs; </script> </head> <body> Can this be done? </body> </html> or <html> <head> <script type="text/javascript" charset="utf-8"> try { vara jfs; } catch (e) { alert('horray! No wait, Booo!'); } </script> </head> <body> Can this be done? </body> </html>

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  • Git repo planning questions

    - by masonk
    At work, development uses perforce to handle code sharing. I won't say "revision control", because we aren't allowed to check in changes until they are ready for regression testing. In order to get my personal change sets under revision control, I've been given the go-ahead to build my own git and initialize the client view of the perforce depot as a git repo. There are some difficulties in doing this, however. The client view lives in a subfolder of ~, (~/p4), and I want to put ~ under revision control as well, with its own separate history. I can't figure out how to keep the history for ~ separate from ~/p4 without using a submodule. The problem with a submodule is that it looks like I have to go make a repository that will become the submodule and then git submodule add <repo> <path>. But there is nowhere to make the submodule's repository except in ~. There seems to be no safe place to create the initial client view of the depot with git p4 clone. (I'm working off of the assumption that initing or cloning a repo into a subdirectory of a git repo is not supported. At least, I can find nothing authoritative on nested git repos.) edit: Is merely ignoring ~/p4 in the repo rooted at ~ enough to allow me to init a nested repo in ~/p4? My __git_ps1 function still thinks I'm in a git repository when I visit an ignored subdirectory of a git repo, so I'm inclined to think not. I need the "remote" repository created by git p4 sync to be a branch in ~/p4. We are required to keep all of our code in ~/p4 so that it doesn't get backed up. Can I pull from a "remote" branch that is really a local branch? This one is just for convenience, but I thought I could learn something by asking it. For 99% of the project, I just want to start the with the p4 head revision as the inital commit object. For the other 1%, I would like to suck down the entire p4 history so that I can browse it in git. IOW, after I'm done initalizing it, the initial commit of remotes/p4/master branch will contain: revision 1 of //depot/prod/Foo/Bar/* revision X of other files in //depot/prod/*, where X is the head revision and the remotes/p4/master branch contains Y commits, where Y is the number of changelists that had a file in //depot/prod/Foo/Bar/*, with each commit in the history corresponding to one of those p4 changelists, and HEAD looking like p4's head.

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  • I have a php form dropdown menu that needs to send information

    - by shinjuo
    I have a dropdown menu that is filled by a mysql database. I need to select one and have it send the information for use on the next page after clicking submit. It does populate the drop down menu like it is supposed to it just does not seem to catch the data on the next page. Here is what I have: removeMain.php <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title></title> </head> <form action="remove.php" method="post"> <?php $link = mysql_connect('********', '********', '*********'); if (!$link){ die('Could not connect: ' . mysql_error()); } mysql_select_db("********", $link); $res = mysql_query("SELECT * FROM cardLists order by cardID") or die(mysql_error()); echo "<select name = CardID>"; while($row=mysql_fetch_assoc($res)) { echo "<option value=$row[ID]>$row[cardID]</a></option>"; } echo "</select>"; ?> Amount to Remove: <input type="text" name="Remove" /> <input type="submit" /> </form> <body> </body> </html> remove.php <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title></title> </head> <body> <?php $link = mysql_connect('*********', '*********', '*********'); if (!$link){ die('Could not connect: ' . mysql_error()); } mysql_select_db("***********y", $link); $query = sprintf("UPDATE cardLists SET AmountLeft = AmountLeft - %s WHERE cardID = '%s'", mysql_real_escape_string($_POST["Remove"]), mysql_real_escape_string($_POST["CardID"])); mysql_query($query); mysql_close($link); ?> <br /> <a href="removeMain.php"> <input type="submit" name="return" id="return" value="Update More" /></a> <a href="index.php"> <input type="submit" name="main" id="main" value="Return To Main" /></a> </body> </html>

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  • ASP.NET Adding Javascript to page if page not secure

    - by user204588
    Hello, I'm trying to add some share this javascript in between the head tags of an asp.net page but only if the page is not secure (!Request.IsSecureConnection). How do I get the code in the head tags to check for secure connection and then write the javascript if not secure. I've tried using <% % blocks and RegisterStartupScriptBlock and it's not working

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  • Mouse over popup like addthis and sharethis??

    - by mathew
    does any one know how to create a mouse over popup like addthis.com and sharethis.com?? it should popup exactly on a button. and moreover it does not have anything inserted into Head tag.can be attached javascript with that link between body tag but not in head. any Ideas, Sample code??

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  • How do I nest ${} in gsp

    - by Neoryder
    This is in my gsp and it doesn't work <g:select name="head.id" from="${com.hive.Persons.findAllByFirstname(${variable})}" optionKey="id" value="${organizationInstance?.head?.id}" /> I think that the main reason is that I am nesting ${}. How can I accomplish this. ${variable} is a string passed from the controller. thanks!

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  • How to rotate 3D axis(XYZ) using Yaw,Pitch,Roll angles in Opengl

    - by user3639338
    I am working Pose estimation with capturing from camera with Opencv. Now I had three angle(Yaw,Pitch,Roll) from each frame(Head) using my code.How to rotate 3D axis(XYZ) those three angle using opengl ? I draw 3D axis using opengl. I have Problem with rotate this axis for returning each frame(Head) using VideoCapture camera input from my code.I cant rotate continuously using returning three angle my code.

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  • php upload file function

    - by Jacksta
    I am trying to write a script which uploads a file via a html form. When I click submit nothing happens. file: upload_form.html <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> </head> <body> <form action="do_upload.php" method="post" enctype="multipart/form-data"></form> <p><strong>File to upload</strong></p> <p><input name="img1" type="file" size="30" /></p> <p><input name="submit" type="submit" value="Upolad File" /></p> </body> </html> file: do_upload.php <?php if ($_FILES[img1] != "" { @copy($_FILES[img1] [tm_name], "/tmp" .$_FILES[img1][name]) or die("couldnt copy the file"); } else { die("no file specified"); } ?> <HTML> <head> <title>Successfull File Upload</title> </head> <body> <h1>Success</h1> <p>You sent: <? echo $_FILES[img1][name]; ?>, a <? echo $_FILES[img1][size]; ?>byte filw with a mime type of <? echo $_FILES[img1][type]; ?></p> </body> </HTML>

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  • nSticky/static variable references in for loops

    - by pthulin
    In this example I create three buttons 'one' 'two' 'three'. When clicked I want them to alert their number: <html> <head> <script type="application/javascript" src="jquery.js"></script> <script type="application/javascript"> $(document).ready(function() { var numbers = ['one', 'two', 'three']; for (i in numbers) { var nr = numbers[i]; var li = $('<li>' + nr + '</li>'); li.click(function() { var newVariable = String(nr); alert(i); // 2 alert(nr); // three alert(newVariable); // three alert(li.html()); // three }); $('ul').append(li); } }); </script> </head> <body> <ul> </ul> </body> </html> The problem is, when any of these are clicked, the last value of the loop's variables is used, i.e. alert box always says 'three'. In JavaScript, variables inside for-loops seem to be 'static' in the C language sense. Is there some way to create separate variables for each click function, i.e. not using the same reference? Thanks! Edit: The solution is to use jQuery.data to associate arbitrary data with each element: <html> <head> <script type="application/javascript" src="jquery.js"></script> <script type="application/javascript"> $(document).ready(function() { var numbers = ['one', 'two', 'three']; for (i in numbers) { var nr = numbers[i]; var li = $('<li>' + nr + '</li>'); li.data('nr', nr); li.click(function() { alert($(this).data('nr')); }); $('ul').append(li); } }); </script> </head> <body> <ul> </ul> </body> </html>

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  • Combinations and Permutations in F#

    - by Noldorin
    I've recently written the following combinations and permutations functions for an F# project, but I'm quite aware they're far from optimised. /// Rotates a list by one place forward. let rotate lst = List.tail lst @ [List.head lst] /// Gets all rotations of a list. let getRotations lst = let rec getAll lst i = if i = 0 then [] else lst :: (getAll (rotate lst) (i - 1)) getAll lst (List.length lst) /// Gets all permutations (without repetition) of specified length from a list. let rec getPerms n lst = match n, lst with | 0, _ -> seq [[]] | _, [] -> seq [] | k, _ -> lst |> getRotations |> Seq.collect (fun r -> Seq.map ((@) [List.head r]) (getPerms (k - 1) (List.tail r))) /// Gets all permutations (with repetition) of specified length from a list. let rec getPermsWithRep n lst = match n, lst with | 0, _ -> seq [[]] | _, [] -> seq [] | k, _ -> lst |> Seq.collect (fun x -> Seq.map ((@) [x]) (getPermsWithRep (k - 1) lst)) // equivalent: | k, _ -> lst |> getRotations |> Seq.collect (fun r -> List.map ((@) [List.head r]) (getPermsWithRep (k - 1) r)) /// Gets all combinations (without repetition) of specified length from a list. let rec getCombs n lst = match n, lst with | 0, _ -> seq [[]] | _, [] -> seq [] | k, (x :: xs) -> Seq.append (Seq.map ((@) [x]) (getCombs (k - 1) xs)) (getCombs k xs) /// Gets all combinations (with repetition) of specified length from a list. let rec getCombsWithRep n lst = match n, lst with | 0, _ -> seq [[]] | _, [] -> seq [] | k, (x :: xs) -> Seq.append (Seq.map ((@) [x]) (getCombsWithRep (k - 1) lst)) (getCombsWithRep k xs) Does anyone have any suggestions for how these functions (algorithms) can be sped up? I'm particularly interested in how the permutation (with and without repetition) ones can be improved. The business involving rotations of lists doesn't look too efficient to me in retrospect. Update Here's my new implementation for the getPerms function, inspired by Tomas's answer. Unfortunately, it's not really any fast than the existing one. Suggestions? let getPerms n lst = let rec getPermsImpl acc n lst = seq { match n, lst with | k, x :: xs -> if k > 0 then for r in getRotations lst do yield! getPermsImpl (List.head r :: acc) (k - 1) (List.tail r) if k >= 0 then yield! getPermsImpl acc k [] | 0, [] -> yield acc | _, [] -> () } getPermsImpl List.empty n lst

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  • ASP.NET Theme stylesheet rendering

    - by Dan Appleyard
    When a page with theme is rendered, the stylesheets link tags in the given theme are rendered right before the closing head tag. Does anyone know of a way to change that? Is there a way that I could have those tags be placed right after the opening head tag? Thanks!

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  • Understanding this matrix transposition function in Haskell

    - by dmindreader
    This matrix transposition function works, but I'm trying to understand its step by step execurtion and I don't get it. transpose:: [[a]]->[[a]] transpose ([]:_) = [] transpose x = (map head x) : transpose (map tail x) with transpose [[1,2,3],[4,5,6],[7,8,9]] it returns: [[1,4,7],[2,5,8],[3,6,9]] I don't get how the concatenation operator is working with map. It is concatenating each head of x in the same function call? How?

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