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Duplicate keys in .NET dictionaries?
...for you, I don't think there's anything in the framework which will help - and using the dictionary is as good as it gets :(
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Comparing Haskell's Snap and Yesod web frameworks
...hat they'd standardise on either ByteStrings or Text as you are constantly converting between them !
– Andrew
Jan 25 '12 at 22:23
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Default constructor with empty brackets
...lt;T>(ifs)), std::istream_iterator<T>());
Or, if you have C++11 and list-initialization (also known as uniform initialization) available:
std::vector<T> v{std::istream_iterator<T>{ifs}, std::istream_iterator<T>{}};
With this, there is no way it could be interpreted as...
Generics in C#, using type of a variable as parameter [duplicate]
... transaction });
Ick.
Can you make your calling method generic instead, and pass in your type parameter as the type argument, pushing the decision one level higher up the stack?
If you could give us more information about what you're doing, that would help. Sometimes you may need to use reflecti...
Determine the number of NA values in a column
...r of NA values in a data frame column. Say my data frame is called df , and the name of the column I am considering is col . The way I have come up with is following:
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Generic method multiple (OR) type constraint
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You can access the value through Primary and Alternate
There are implicit converters between TP/TA and Either to allow you to pass either the values or an Either anywhere where one is expected. If you do pass an Either where a TA or TP is expected, but the Either contains the wrong type of value yo...
Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ile scriptfile
从脚本文件中读取awk命令。
-mf nnn and -mr nnn
对nnn值设置内在限制，-mf选项限制分配给nnn的最大块数目；-mr选项限制记录的最大数目。这两个功能是Bell实验室版awk的扩展功能，在标准awk中不适用。
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How do I get a platform-dependent new line character?
...ddition to the line.separator property, if you are using java 1.5 or later and the String.format (or other formatting methods) you can use %n as in
Calendar c = ...;
String s = String.format("Duke's Birthday: %1$tm %1$te,%1$tY%n", c);
//Note `%n` at end of line ^^
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Android - How to get application name? (Not package name)
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This works fine, as long as you really use a label in android:name. If you hardcoded a string, then it fails.
– Snicolas
Aug 29 '13 at 15:20
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How do you change the datatype of a column in SQL Server?
...ge a column from a varchar(50) to a nvarchar(200) . What is the SQL command to alter this table?
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