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How should I print types like off_t and size_t?
I'm trying to print types like off_t and size_t . What is the correct placeholder for printf() that is portable ?
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What is the difference between persist() and merge() in JPA and Hibernate?
What is the difference between persist() and merge() in Hibernate?
4 Answers
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How to check if all elements of a list matches a condition?
...ne this with a generator expression to produce the result you want cleanly and efficiently. For example:
>>> items = [[1, 2, 0], [1, 2, 0], [1, 2, 0]]
>>> all(flag == 0 for (_, _, flag) in items)
True
>>> items = [[1, 2, 0], [1, 2, 1], [1, 2, 0]]
>>> all(flag == ...
`date` command on OS X doesn't have ISO 8601 `-I` option?
... want to print the current datetime in ISO 8601 format (preferably UTC), and it seems that this should be as simple as date -I :
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Convert Dictionary to semicolon separated string in c#
...ring.Join(";", myDict.Select(x => x.Key + "=" + x.Value).ToArray());
(And if you're using .NET 4, or newer, then you can omit the final ToArray call.)
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“Order by Col1, Col2” using entity framework
...c"
)
Where
IQueryable<a> is entity query,
"col1 asc" is column 1 and sorting direction
"col2 asc" is column 2 and sorting direction
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Does Python have a ternary conditional operator?
...rst condition is evaluated, then exactly one of either a or b is evaluated and returned based on the Boolean value of condition. If condition evaluates to True, then a is evaluated and returned but b is ignored, or else when b is evaluated and returned but a is ignored.
This allows short-circuiting ...
What is the best way to compute trending topics or tags?
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This problem calls for a z-score or standard score, which will take into account the historical average, as other people have mention, but also the standard deviation of this historical data, making it more robust than just using the average.
In your case a z-sc...
Haskell error parse error on input `='
I'm new to Haskell and after starting ghci I tried:
4 Answers
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How to catch integer(0)?
.... True, but I don't think there's much of a performance issue either way, and length(x) == 0L reads more clearly to me.
– Richie Cotton
Jun 24 '11 at 10:04
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