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Is there a difference between foreach and map?
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Different.
foreach iterates over a list and applies some operation with side effects to each list member (such as saving each one to the database for example)
map iterates over a list, transforms each member of that list, and returns another l...
Utils to read resource text file to String (Java) [closed]
Is there any utility that helps to read a text file in the resource into a String. I suppose this is a popular requirement, but I couldn't find any utility after Googling.
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Fastest way to check if a string is JSON in PHP?
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edited Jun 21 '12 at 16:10
answered May 18 '11 at 8:20
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Unable to execute dex: Multiple dex files define Lcom/myapp/R$array;
Since updating to ADT 14 I can no longer build my project. It was building fine prior to updating.
54 Answers
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Are Exceptions in C++ really slow
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The main model used today for exceptions (Itanium ABI, VC++ 64 bits) is the Zero-Cost model exceptions.
The idea is that instead of losing time by setting up a guard and explicitly checking for the presence of exceptions everywhere, the compiler generates a side tab...
How can I check the syntax of Python script without executing it?
...use perl -c programfile to check the syntax of a Perl program and then exit without executing it. Is there an equivalent way to do this for a Python script?
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How do I send a cross-domain POST request via JavaScript?
...nuing everyone should read and understand the html5rocks tutorial on CORS. It is easy to understand and very clear.
If you control the server being POSTed, simply leverage the "Cross-Origin Resource Sharing standard" by setting response headers on the server. This answer is discussed in other answ...
How can I make a WPF combo box have the width of its widest element in XAML?
I know how to do it in code, but can this be done in XAML ?
12 Answers
12
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“unpacking” a tuple to call a matching function pointer
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Just felt that should be stated once in an answer in this thread (after it already appeared in one of the comments).
The basic C++14 solution is still missing in this thread. EDIT: No, it's actually there in the answer of Walter.
This function is given:
void f(int a, double b, void* c)
{
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How do you pass multiple enum values in C#?
...t will accept multiple enum values in a single parameter. I always thought it was kind of neat, but never looked into it.
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