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iOS Detect 3G or WiFi

... Yes Cool it worked!!! Had to do some fixing up of the reachability files as they had errors for iOS5 in it - but I am so happy right now. Unfortunately I can only give you 1 up vote:-) – jwknz Oct 29 '11 at 20:19 ...
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When & why to use delegates? [duplicate]

...o, our application starts by looking for any downloads and downloading the file(s) then it calls the SaveDatabase project. Now, our application needs to notify the FTP site when a file is saved to the database by uploading a file with Meta data (ignore why, it's a request from the owner of the FTP...
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Xcode 4 hangs at “Attaching to (app name)”

...e derived data worked for me (3rd tip). This problem happened when I added files to an XCode project and this solved it. – Jonathon Horsman Jun 30 '11 at 7:44 add a comment ...
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PHP CURL DELETE request

... @user1788736 I'm not good at Ajax, but I guess you could create a PHP file that executes this method, and with Ajax send your data using POST to that PHP file. If you think the method above is confusing, look again. $url s simply the server you need to talk with (someserver.com) and $path is th...
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How do I preview emails in Rails?

...ationController def preview_welcome() @user = User.last render :file => 'mailer/welcome.html.erb', :layout => 'mailer' end end Note that when we render the template, we use layout=>:mailer. This embeds the body of your email inside the HTML email layout that you've created ...
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How to duplicate a whole line in Vim?

...fter line 7, :,+t0 will copy current and next line at the beginning of the file (,+ is a synonym for the range .,.+1), :1,t$ will copy lines from beginning till cursor position to the end (1, is a synonym for the range 1,.). If you need to move instead of copying, use :m instead of :t. This can b...
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Counter increment in Bash loop not working

...variables local to the child process. One way to solve it is using a temp file for storing the intermediate value: TEMPFILE=/tmp/$$.tmp echo 0 > $TEMPFILE # Loop goes here # Fetch the value and increase it COUNTER=$[$(cat $TEMPFILE) + 1] # Store the new value echo $COUNTER > $TEMPF...
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Find the PID of a process that uses a port on Windows

...e fiddling with a script I came to this action. Copy and save it in a .bat file: FOR /F "usebackq tokens=5" %%i IN (`netstat -aon ^| find "3306"`) DO taskkill /F /PID %%i Change 'find "3306"' in the port number which needs to be free. Then run the file as administrator. It will kill all the proce...
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Smooth scroll to div id jQuery

... If you’re using WordPress, insert the code in your theme’s footer.php file right before the closing body tag </body>. If you have no access to the theme files, you can embed the code right inside the post/page editor (you must be editing the post in Text mode) or on a Text widget that wi...
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When to use inline function and when not to use it?

...ll functions). About performance, the wise approach is (as always) to profile the application, then eventually inline a set of functions representing a bottleneck. References: To Inline or Not To Inline [9] Inline functions Policies/Binary Compatibility Issues With C++ GotW #33: Inline Inline R...