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What is the difference between a port and a socket?

...because a connection is identified by both its local and remote endpoints, allowing traffic to be routed to a specific service instance. There can only be one listener socket for a given address/port combination. Exposition This was an interesting question that forced me to re-examine a number of...
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About .bash_profile, .bashrc, and where should alias be written in? [duplicate]

...n or use the appropriate flag to tell Bash to act as a login shell. Personally, I put my PATH setup into a .profile file (because I sometimes use other shells); I put my Bash aliases and functions into my .bashrc file; I put this #!/bin/bash # # CRM .bash_profile Time-stamp: "2008-12-07 19:42" #...
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Is there any way to check if iOS app is in background?

I want to check if the app is running in the background. 8 Answers 8 ...
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How to enable file sharing for my app?

I have an image editing app where users can apply effects to photos. How could I enable it so that users can see my app in iTunes in the File Sharing tab and then just drag+drop photos to the app? ...
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Linux c++ error: undefined reference to 'dlopen'

...f("libc.so.6 loading failed\n"); return 0; } EOF ./app.exe as well as all of these: $CC -ldl -x c -o app.exe - << EOF $CC -x c -ldl -o app.exe - << EOF $CC -x c -o app.exe -ldl - << EOF $CC -x c -o app.exe - -ldl << EOF However, with CC=gcc, only the last variant wor...
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Get specific object by id from array of objects in AngularJS

... I would highly appreciate if the downvoters could motivate their decision. – Antonio E. Jan 13 '15 at 13:02 1 ...
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Coding Style Guide for node.js apps? [closed]

...= Always declare your variables with var in the appropriate scope - don't fallback to the global scope Wrap your app in a closure (function(){})() if you plan on releasing code that runs server-side as well as in the browser Callbacks should take err as the first argument and if they themselves take...
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What does an exclamation mark mean in the Swift language?

...pple have chosen to declare the types as implicitly unwrapped, making the calling code more convenient, but less safe. Perhaps Apple might comb through their frameworks in the future, removing the uncertainty of implicitly unwrapped ("probably never nil") parameters and replacing them with optional...
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Gunicorn worker timeout error

...hen, in order to save resources with many concurrent connections: pip install gevent , then worker_class gevent in your config file or -k gevent on the command line. – little_birdie Jan 5 '16 at 4:11 ...
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Controller not a function, got undefined, while defining controllers globally

I am writing a sample application using angularjs. i got an error mentioned below on chrome browser. 14 Answers ...