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is it possible to select EXISTS directly as a bit?
I was wondering if it's possible to do something like this (which doesn't work):
9 Answers
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Sql Server equivalent of a COUNTIF aggregate function
...I know the OP asked about MS SQL, but just a tiny comment for SQLite users doing the same thing) SQLite has no ISNULL, instead you can do CASE WHEN myColumn IS NULL, or use ifnull ( stackoverflow.com/a/799406/1861346 )
– Matt
Oct 28 '17 at 2:55
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Initialising an array of fixed size in python [duplicate]
... The question specified ".. yet to be populated with values". The Python docs indicate "None is typically used to represent absence of a value". My example produced such a list of the defined size, in the shortest amount of code. Its the closest thing in idiomatic Python at the time the question w...
What happens when there's insufficient memory to throw an OutOfMemoryError?
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The JVM never really runs out of memory. It does memory computation of the heap stack in advance.
The Structure of the JVM, Chapter 3, section 3.5.2 states:
If Java virtual machine stacks can be dynamically expanded, and expansion is attempted but insufficient ...
Pushing empty commits to remote
...story will look kind of confusing.
You could change the commit message by doing
git commit --amend
git push --force-with-lease # (as opposed to --force, it doesn't overwrite others' work)
BUT this will override the remote history with yours, meaning that if anybody pulled that repo in the meanwh...
How can I load storyboard programmatically from class?
...s very hard to nest all xib files in storyboard. So I was looking a way to do it in code, like with alloc, init, push for viewControllers. In my case I have only one controller in storyboard: UITableViewController , which has static cells with some content I want to show. If anyone knows proper w...
Swift make method parameter mutable?
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Except this doesn't seem to work for closures since closures evidently only capture inout parameters by value (at least that is the error message Xcode gives me). I use @GeRyCh solution in this case.
– wcochran
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Execute JavaScript code stored as a string
How do I execute some JavaScript that is a string?
20 Answers
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Should you always favor xrange() over range()?
...are still a few cases why you might prefer range():
In python 3, range() does what xrange() used to do and xrange() does not exist. If you want to write code that will run on both Python 2 and Python 3, you can't use xrange().
range() can actually be faster in some cases - eg. if iterating over t...
List of lists changes reflected across sublists unexpectedly
... need to make sure that you create a new list at each position. One way to do it is
[[1]*4 for _ in range(3)]
which will reevaluate [1]*4 each time instead of evaluating it once and making 3 references to 1 list.
You might wonder why * can't make independent objects the way the list comprehens...