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Default constructor with empty brackets
Is there any good reason that an empty set of round brackets (parentheses) isn't valid for calling the default constructor in C++?
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How to Convert JSON object to Custom C# object?
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How to remove item from list in C#?
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373
List<T> has two methods you can use.
RemoveAt(int index) can be used if you know the i...
When should I use a table variable vs temporary table in sql server?
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364
Your question shows you have succumbed to some of the common misconceptions surrounding table ...
Are the decimal places in a CSS width respected?
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edited Nov 29 '10 at 23:24
answered Nov 29 '10 at 23:12
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Task vs Thread differences [duplicate]
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answered Nov 17 '12 at 9:03
Jon SkeetJon Skeet
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return query based on date
...e:
db.gpsdatas.find({"createdAt" : { $gte : new ISODate("2012-01-12T20:15:31Z") }});
I'm using $gte (greater than or equals), because this is often used for date-only queries, where the time component is 00:00:00.
If you really want to find a date that equals another date, the syntax would be
d...
Possible heap pollution via varargs parameter
...le)
– hertzsprung
Sep 17 '12 at 16:03
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I've found an explanation of heap pollution on programme...
How to count TRUE values in a logical vector
...m(z) # gives you NA
table(z)["TRUE"] # gives you 1
length(z[z == TRUE]) # f3lix answer, gives you 2 (because NA indexing returns values)
So I think the safest is to use na.rm = TRUE:
sum(z, na.rm = TRUE) # best way to count TRUE values
(which gives 1). I think that table solution is less effici...