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@import vs #import - iOS 7

... It's a new feature called Modules or "semantic import". There's more info in the WWDC 2013 videos for Session 205 and 404. It's kind of a better implementation of the pre-compiled headers. You can use modules with any of the system frameworks in...
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Ruby: How to get the first character of a string

...ot that you should be using 1.8 anymore anyway!--but when this answer was posted it was still quite common): puts 'Smith'[0] # prints 83 Of course, if you're not doing it on a regular basis, then defining the method might be overkill, and you could just do it directly: puts last_name[0...
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On logout, clear Activity history stack, preventing “back” button from opening logged-in-only Activi

All activities in my application require a user to be logged-in to view. Users can log out from almost any activity. This is a requirement of the application. At any point if the user logs-out, I want to send the user to the Login Activity . At this point I want this activity to be at the bottom of...
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Javascript - How to extract filename from a file input control

... vog's answer is really close to the 100% accurate answer to the question (except needs to strip the extension.) A filename is no different from any other string. – Jon Watte May 21 '16 at 19:38 ...
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How do I load a file into the python console?

... if the file contains import statements e.g. import os, does exec() execute those statements? I'm trying this currently and the answer appears to be no... – Rylan Schaeffer May 21 at 17:23 ...
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Error when trying vagrant up

... If you're using OS X and used the standard install, Delete vagrant's old curl and it should now work sudo rm /opt/vagrant/embedded/bin/curl share | ...
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Why do you have to link the math library in C?

...es libm, so if you compile a C++ program with GCC (g++), you will automatically get libm linked in. share | improve this answer | follow | ...
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'Missing recommended icon file - The bundle does not contain an app icon for iPhone / iPod Touch of

... just need to drag and drop your 1024 x 1024 icon and the site will create all the icon sizes and send it to your email. Then follow the following method to set icons for iOS app. After Apple launched iOS 8, iPhone 6 and 6 Plus, the app icon sizes and launch image sizes changed. Please visit my pos...
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Difference between CLOCK_REALTIME and CLOCK_MONOTONIC?

... CLOCK_REALTIME represents the machine's best-guess as to the current wall-clock, time-of-day time. As Ignacio and MarkR say, this means that CLOCK_REALTIME can jump forwards and backwards as the system time-of-day clock is changed, including by NTP. CLOCK_MONOTONIC represents the absolute ela...
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What's the difference between “Solutions Architect” and “Applications Architect”? [closed]

...g" term for Applications Architect . Is that correct or are the roles actually different somehow? If so, how? 11 Answers ...