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How to check status of PostgreSQL server Mac OS X

...o get them to take effect, remember to source it like so: $ . ~/.bashrc Now, try it and you should get something like this: $ show-pg-status pg_ctl: server is running (PID: 11030) /usr/local/Cellar/postgresql/9.2.4/bin/postgres ...
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“Origin null is not allowed by Access-Control-Allow-Origin” error for request made by application ru

...on.photos[1].photoUrl); }); You may try it online from here. UPDATE: Now that you have shown your code I can see the problem with it. You are having both an anonymous function and inline function but both will be called processImages. That's how jQuery's JSONP support works. Notice how I am de...
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Difference between ActionBarSherlock and ActionBar Compatibility

...ase read the comments below for details. --EDIT-- After having used both now, I can say that I actually prefer ActionBarSherlock to Action Bar Compatibility. ActionBarSherlock is really easy and nice to use. --EDIT-- As LOG_TAG mentioned, there is now support for the action bar in the Android Sup...
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What are free monads?

I've seen the term Free Monad pop up every now and then for some time, but everyone just seems to use/discuss them without giving an explanation of what they are. So: what are free monads? (I'd say I'm familiar with monads and the Haskell basics, but have only a very rough knowledge of cat...
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How to convert Linux cron jobs to “the Amazon way”?

...rusted_dlcp/research.google.com/en//archive/chubby-osdi06.pdf Let me know if this helps, and feel free to ask questions, we are very aware that our services can be complex and daunting to both beginners and seasoned developers alike. We are always happy to offer architecture and best prac...
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Python in Xcode 4+?

...longer work or are unclear due to changes in Xcode updates, please let me know. I will make the necessary corrections. Open Xcode. The instructions for either are the same. In the menu bar, click “File” → “New” → “New Project…”. Select “Other” in the left pane, then "External...
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Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization

...nvalid state. it already makes life easier before we even use the object. Now, let us have a look at temporary objects: void CopyFileData(FileHandle source, FileHandle dest); void Foo() { CopyFileData(FileHandle("C:\\source"), FileHandle("C:\\dest")); } There are three error cases to handle...
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How to get unique values in an array

... Update 18-04-2017 It appears as though 'Array.prototype.includes' now has widespread support in the latest versions of the mainline browsers (compatibility) Update 29-07-2015: There are plans in the works for browsers to support a standardized 'Array.prototype.includes' method, which alth...
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presentViewController:animated:YES view will not appear until user taps again

... Right now, setUpViewForNextQuestion just calls reloadData on the tableview (to change all the background colours back to white if any had been set to red by an incorrect guess). But would any changes there make any difference? The ...
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How do I know that the UICollectionView has been loaded completely?

...UICollectionView's datasource / layout methods should be called. How do I know that?? Is there any delegate method to know UICollectionView loaded status? ...