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Which is more efficient, a for-each loop, or an iterator?

... If you are just wandering over the collection to read all of the values, then there is no difference between using an iterator or the new for loop syntax, as the new syntax just uses the iterator underwater. If however, you mean by loop the old "c-style" loop: for(int i=0; i&l...
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iOS 7 - Status bar overlaps the view

... Xcode 5 has iOS 6/7 Deltas which is specifically made to resolve this issue. In the storyboard, I moved my views 20 pixels down to look right on iOS 7 and in order to make it iOS 6 compatible, I changed Delta y to -20. Since my storyboard is not using auto-layout,...
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Vim: apply settings on files in directory

How do I specify Vim settings for all files under the current directory? 11 Answers 11...
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How to set environment variables in Jenkins?

...ajorVersion" | python -c 'import sys,re,os; print("VERSION_NUMBER="+re.findall(r"[\d+\.]+", sys.stdin.read())[0]+os.environ["BUILD_NUMBER"])' – kenny_k Jun 19 '15 at 6:52 ...
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When to use EntityManager.find() vs EntityManager.getReference() with JPA

... I usually use getReference method when i do not need to access database state (I mean getter method). Just to change state (I mean setter method). As you should know, getReference returns a proxy object which uses a powerful featu...
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How can I fix the Microsoft Visual Studio error: “package did not load correctly”?

I installed Visual Studio 2012 and DevExpress 13.1. As Visual Studio started, it generated an error shown by this attached image, ...
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Refresh a page using PHP

How can I refresh a page using PHP periodically? If I can not do it by PHP, what is the best recommended scenario? 13 Answe...
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What's the recommended approach to resetting migration history using Django South?

...inted out by @thnee below. Since your answer has so many upvotes I'd really appreciate it if you could edit it and add at least a warning about this, or (even better) change it to reflect @hobs approach (which is just as convenient, but doesn't affect other apps) - thanks! – chris...
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throw Error('msg') vs throw new Error('msg')

...this is explicitly stated in the specification: ... Thus the function call Error(…) is equivalent to the object creation expression new Error(…) with the same arguments. share | improve thi...
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How do I get PyLint to recognize numpy members?

... I had the same issue here, even with the latest versions of all related packages (astroid 1.3.2, logilab_common 0.63.2, pylon 1.4.0). The following solution worked like a charm: I added numpy to the list of ignored modules by modifying my pylintrc file, in the [TYPECHECK] section: [...