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AES Encryption for an NSString on the iPhone
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Since you haven't posted any code, it's difficult to know exactly which problems you're encountering. However, the blog post you link to does seem to work pretty decently... aside from the extra comma in each call to CCCrypt() which caused compile errors.
A later comment on tha...
Python: Why is functools.partial necessary?
... base=2),)
if setattr(f, 'keywords', {'base': 2}) is None][0]
Now combine the named-arguments overridability, plus the setting of three attributes, into a single expression, and tell me just how readable that is going to be...!
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Good example of livelock?
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Flippant comments aside, one example which is known to come up is in code which tries to detect and handle deadlock situations. If two threads detect a deadlock, and try to "step aside" for each other, without care they will end up being stuck in a loop always "stepping a...
How would I run an async Task method synchronously?
...sed on the sitemap and the third party library I was using was MvcSitemap. Now when one is extending it via the DynamicNodeProviderBase base class, one cannot declare it as a async method. Either I had to replace with a new library, or just call a synchronous op.
– justin.lovel...
Convert an array of primitive longs into a List of Longs
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Since Java 8 you can now use streams for that:
long[] arr = {1,2,3,4};
List<Long> list = Arrays.stream(arr).boxed().collect(Collectors.toList());
share
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onKeyPress Vs. onKeyUp and onKeyDown
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This is of critical importance if you are doing something that relies on knowing the new value after the input rather than the current value such as inline validation or auto tabbing.
Scenario:
The user types 12345 into an input element.
The user selects the text 12345.
The user types the letter...
How to get string objects instead of Unicode from JSON?
...e a conversion function:
I used the one from Mark Amery a couple of times now, it works great and is very easy to use. You can also use a similar function as an object_hook instead, as it might gain you a performance boost on big files. See the slightly more involved answer from Mirec Miskuf for th...
Is a view faster than a simple query?
...I'm fairly certain that SQL Server uses some variant of a b-tree, I don't know the details. Nonetheless, the point holds.
Update 3: The question has come up about whether an Indexed View just uses an index placed on the underlying table. That is, to paraphrase: "an indexed view is just the equiva...
Why is using 'eval' a bad practice?
...ad design than division by zero or attempting to import a module which is known not to exist. eval isn't insecure. Applications are insecure.
– S.Lott
Dec 2 '09 at 17:38
17
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How to compare objects by multiple fields
...to the fields by using Strings instead (no typesafety, auto-refactorings). Now if a field is renamed, the compiler won’t even report a problem. Moreover, because this solution uses reflection, the sorting is much slower.
Getting there: Sorting with Google Guava’s ComparisonChain
Collections.so...