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Email address validation using ASP.NET MVC data type attributes
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333
If you are using .NET Framework 4.5, the solution is to use EmailAddressAttribute which reside...
Why can't I initialize non-const static member or static array in class?
...eason a is allowed to be initialized while others are not.
Reference:
C++03 9.4.2 Static data members
§4
If a static data member is of const integral or const enumeration type, its declaration in the class definition can specify a constant-initializer which shall be an integral constant expres...
How do you check if a variable is an array in JavaScript? [duplicate]
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23 Answers
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Cannot use ref or out parameter in lambda expressions
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edited Apr 27 '16 at 9:30
silkfire
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answered...
How to check if object has any properties in JavaScript?
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edited Dec 4 '18 at 3:39
Reese Jones
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answered Apr 20 '10 at 6:49
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Order data frame rows according to vector with specific order
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236
Try match:
df <- data.frame(name=letters[1:4], value=c(rep(TRUE, 2), rep(FALSE, 2)))
target...
Postgres: Distinct but only for one column
... (having more than 1 mio. rows), but I have also many duplicates. I select 3 fields: id , name , metadata .
3 Answers
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How to list the contents of a package using YUM?
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438
There is a package called yum-utils that builds on YUM and contains a tool called repoquery tha...
Is there any way to ignore INSTALL_FAILED_VERSION_DOWNGRADE on application install with the Android
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answered Dec 7 '12 at 23:25
supereeesupereee
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