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Mediator Vs Observer Object-Oriented Design Patterns
I have been reading the Gang Of Four , in order to solve some of my problems and came across the Mediator pattern.
8 Ans...
How to pass command line arguments to a rake task
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Options and dependencies need to be inside arrays:
namespace :thing do
desc "it does a thing"
task :work, [:option, :foo, :bar] do |task, args|
puts "work", args
end
task :another, [:option, :foo, :bar] do |task, args|
puts "another #{args}"
Rake::T...
Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
I was going through the exercises in Ruby Koans and I was struck by the following Ruby quirk that I found really unexplainable:
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How do I remove diacritics (accents) from a string in .NET?
I'm trying to convert some strings that are in French Canadian and basically, I'd like to be able to take out the French accent marks in the letters while keeping the letter. (E.g. convert é to e , so crème brûlée would become creme brulee )
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Check if a class has a member function of a given signature
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I'm not sure if I understand you correctly, but you may exploit SFINAE to detect function presence at compile-time. Example from my code (tests if class has member function size_t used_memory() const).
template<typename T>
struct HasUsedMemoryMeth...
Appending an element to the end of a list in Scala
I can't add an element of type T into a list List[T] .
I tried with myList ::= myElement but it seems it creates a strange object and accessing to myList.last always returns the first element that was put inside the list. How can I solve this problem?
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How can I output a UTF-8 CSV in PHP that Excel will read properly?
I've got this very simple thing that just outputs some stuff in CSV format, but it's got to be UTF-8. I open this file in TextEdit or TextMate or Dreamweaver and it displays UTF-8 characters properly, but if I open it in Excel it's doing this silly íÄ kind of thing instead. Here's what I've got at...
Mapping composite keys using EF code first
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You definitely need to put in the column order, otherwise how is SQL Server supposed to know which one goes first? Here's what you would need to do in your code:
public class MyTable
{
[Key, Column(Order = 0)]
public str...
UICollectionView inside a UITableViewCell — dynamic height?
...View inside of a UITableViewCell . This UICollectionView will have a dynamic number of items, resulting in a height which must be calculated dynamically as well. However, I am running into problems trying to calculate the height of the embedded UICollectionView .
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Why `null >= 0 && null
I had to write a routine that increments the value of a variable by 1 if its type is number and assigns 0 to the variable if not, where the variable is initially null or undefined .
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