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In Functional Programming, what is a functor?
...fmap even
is an overloaded function that can do many wonderful things:
Convert a list of integers to a list of Booleans
Convert a tree of integers to a tree of Booleans
Convert Nothing to Nothing and Just 7 to Just False
In Haskell, this property is expressed by giving the type of fmap:
fmap ...
How to properly check if std::function is empty in C++11?
... an empty lambda doesn't really make sense. Behind the scenes the compiler converts a lambda expression into a struct (or class) definition, with the variables you capture stored as data members of this struct. A public function call operator is also defined, which is what allows you to invoke the l...
Default template arguments for function templates
...
On Windows, with all versions of Visual Studio you can convert this error (C4519) to a warning or disable it like so:
#ifdef _MSC_VER
#pragma warning(1 : 4519) // convert error C4519 to warning
// #pragma warning(disable : 4519) // disable error C4519
#endif
See more details ...
Algorithm to get the excel-like column name of a number
I'm working on a script that generate some Excel documents and I need to convert a number into its column name equivalent. For example:
...
Convert character to ASCII code in JavaScript
How can I convert a character to its ASCII code using JavaScript?
10 Answers
10
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Rank function in MySQL
...orresponding ANSI standard SQL query for my requirement. Please help me to convert it to MySQL .
11 Answers
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Convert a JSON string to object in Java ME?
Is there a way in Java/J2ME to convert a string, such as:
14 Answers
14
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Convert Datetime column from UTC to local time in select statement
I'm doing a few SQL select queries and would like to convert my UTC datetime column into local time to be displayed as local time in my query results. Note, I am NOT looking to do this conversion via code but rather when I am doing manual and random SQL queries against my databases.
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How do I get a TextBox to only accept numeric input in WPF?
...ject.GetDataPresent(DataFormats.Text))
{
string text = Convert.ToString(e.DataObject.GetData(DataFormats.Text));
if (!IsValid(text, true))
{
e.CancelCommand();
}
}
else
{
e.CancelCommand();
...
Convert array of strings into a string in Java
I want the Java code for converting an array of strings into an string.
13 Answers
13
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