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Random record in ActiveRecord
... getting a random record from a table via ActiveRecord. I've followed the example from Jamis Buck from 2006 .
25 Answers
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Java SafeVarargs annotation, does a standard or best practice exist?
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1) There are many examples on the Internet and on StackOverflow about the particular issue with generics and varargs. Basically, it's when you have a variable number of arguments of a type-parameter type:
<T> void foo(T... args);
In Ja...
Why do python lists have pop() but not push()
...s already a list.pop that removes and returns the last element (that indexed at -1) and list.append semantic is consistent with that use?
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How to merge two arrays in JavaScript and de-duplicate items
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Does Python have an ordered set?
...later and 3.0 or later without any modifications. The interface is almost exactly the same as a normal set, except that initialisation should be done with a list.
OrderedSet([1, 2, 3])
This is a MutableSet, so the signature for .union doesn't match that of set, but since it includes __or__ someth...
What do single quotes do in C++ when used on multiple characters?
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It's a multi-character literal. 1952805748 is 0x74657374, which decomposes as
0x74 -> 't'
0x65 -> 'e'
0x73 -> 's'
0x74 -> 't'
Edit:
C++ standard, §2.14.3/1 - Character literals
(...) An ordinary character literal that contains more than
one c-char is a mult...
How to get started with developing Internet Explorer extensions?
Does anyone here have experience with/in developing IE extensions that can share their knowledge? This would include code samples, or links to good ones, or documentation on the process, or anything.
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Setting HttpContext.Current.Session in a unit test
...g to unit test. In the service it pulls several values from the HttpContext like so:
14 Answers
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Is there a tool to convert JavaScript files to TypeScript [closed]
Now TypeScript came out, it is an exciting news for me, but how can I convert all the existing JavaScript files to TypeScript.
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How to create a custom string representation for a class object?
...so can you give me any pointers there?
– Björn Pollex
Feb 8 '11 at 11:50
Unfortunately this cannot be done with class...