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Determine if variable is defined in Python [duplicate]
... runtime? This is not always obvious because (1) the variable could be conditionally set, and (2) the variable could be conditionally deleted. I'm looking for something like defined() in Perl or isset() in PHP or defined? in Ruby.
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What is the proper way to re-attach detached objects in Hibernate?
I have a situation in which I need to re-attach detached objects to a hibernate session, although an object of the same identity MAY already exist in the session, which will cause errors.
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How to use concerns in Rails 4
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So I found it out by myself. It is actually a pretty simple but powerful concept. It has to do with code reuse as in the example below. Basically, the idea is to extract common and / or context specific chunks of code in order to clean ...
Why cast unused return values to void?
...ason for casting an unused return value to void, or am I right in thinking it's a complete waste of time?
9 Answers
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Types in MySQL: BigInt(20) vs Int(20)
...dering what the difference between BigInt , MediumInt , and Int are... it would seem obvious that they would allow for larger numbers; however, I can make an Int(20) or a BigInt(20) and that would make seem that it is not necessarily about size.
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Check if a given key already exists in a dictionary and increment it
...follow
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edited Feb 2 '19 at 8:26
JamesThomasMoon1979
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X-UA-Compatible is set to IE=edge, but it still doesn't stop Compatibility Mode
I am quite confused. I should be able to set
18 Answers
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Moving and vanishing lines of code; trouble with Eclipse's XML Editor
Sometimes my code moves on its own or just disappears in the Eclipse XML editor.
7 Answers
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Any decent text diff/merge engine for .NET? [closed]
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You can grab the COM component that uses Google's Diff/Patch/Match. It works from .NET.
Update, 2010 Oct 17: The Google Diff/Patch/Merge code has been ported to C#. The COM component still works, but if you're coming from .NET, you'll wanna use the .NET port directly.
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Adaptive segue in storyboard Xcode 6. Is push deprecated?
Xcode 6 interface builder by default has new checkbox "use size classes". It makes views adaptive.
7 Answers
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