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CodeIgniter: Create new helper?

...o it. <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); if ( ! function_exists('test_method')) { function test_method($var = '') { return $var; } } Save this to application/helpers/ . We shall call it "new_helper.php" The first line exists to ...
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Maven2: Missing artifact but jars are in place

... settings in the global or user settings. Check you're using the Maven installation you expect. By default m2eclipse uses the embedder, if you have a separate installation you may want to configure m2eclipse to use the external installation so that CLI and Eclipse builds are consistent. This also en...
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How to run a python script from IDLE interactive shell?

...s.call(['python', 'helloworld.py']) # Just run the program subprocess.check_output(['python', 'helloworld.py']) # Also gets you the stdout With arguments: subprocess.call(['python', 'helloworld.py', 'arg']) Read the docs for details :-) Tested with this basic helloworld.py: import sys if le...
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Array versus List: When to use which?

...he underlying stream (and v.v.); quicker than BufferedStream etc; it internally uses an array-based model of objects (Foo[] rather than List<Foo>), since the size is fixed once built, and needs to be very fast. But this is definitely an exception; for general line-of-business processing, a L...
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Automatic vertical scroll bar in WPF TextBlock?

...g its vertical height. I expected a vertical scroll bar to appear automatically when that happens, but it didn't. I tried to look for a scroll bar property in the Properties pane, but could not find one. ...
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Static way to get 'Context' in Android?

...ontext() { return MyApplication.context; } } Now everywhere call MyApplication.getAppContext() to get your application context statically. share | improve this answer | ...
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What is the aspnet_client folder for under the IIS structure?

... In addition to what others have said, it's usually created by the aspnet_regiis tool, which can be (re-)run by things like Windows Update/AddRemove Windows components/IIS. So sometimes even if you do delete it, it can come back randomly. There may be a way to stop this ...
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When to use static vs instantiated classes

...r BB code to HTML ; it doesn't have a life on its own) (Yeah, I admit, really really overly-simplified...) One thing about static methods/classes is that they don't facilitate unit testing (at least in PHP, but probably in other languages too). Another thing about static data is that only one in...
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Django admin: how to sort by one of the custom list_display fields that has no database field

How could I sort Customers, depending on number_of_orders they have? 3 Answers 3 ...
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iphone Core Data Unresolved error while saving

...conflict with the old model implementation. Edit: I almost forgot here's all the error codes that Core Data spits out: Core Data Constants Reference I had trouble with this before and I realised I unchecked the correct optional box. Such trouble finding out the problem. Good luck. ...