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How does the following LINQ statement work?
...conversion operators which allow you to make a copy/snapshot of the result and access is as many times you want, without the need to re-execute the query.
If you want the output to be 2,4,6, use .ToList():
var list = new List<int>{1,2,4,5,6};
var even = list.Where(m => m%2 == 0).ToList()...
Merge development branch with master
I have two branches namely master and development in a GitHub Repository. I am doing all my development in development branch as shown.
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Common elements in two lists
...tB);
// common now contains only the elements which are contained in listA and listB.
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Where's the difference between setObject:forKey: and setValue:forKey: in NSMutableDictionary?
...oking at the documentation, I hardly see any big difference. Both "value" and "object" are of type id , so can be any object. Key is once a string, and in the other case an id. One of them seems to retain the object, and the other don't. What else? Which one is for what case?
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Format date and time in a Windows batch script
In a Windows (Windows XP) batch script I need to format the current date and time for later use in files names, etc.
33 An...
Use of var keyword in C#
...eadable in some cases. If I have a Customer class with an Orders property, and I want to assign that to a variable, I will just do this:
var orders = cust.Orders;
I don't care if Customer.Orders is IEnumerable<Order>, ObservableCollection<Order> or BindingList<Order> - all I wan...
F12 no longer works in Visual Studio
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I have had a few occasions where Resharper and Visual Studio keybindings got mixed up and I had problems sorting them out.
If it is only one or two bindings you care about then you can change them by going to the
Tools->Customize->Keyboard menu option.
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C# member variable initialization; best practice?
...;SomeClass> Items {get {return items;}}
I don't have to go hunting up and down to find where it is assigned...
The obvious exception is where you need to perform complex logic or deal with constructor parameters - in which case constructor-based initialization is the way to go. Likewise, if yo...
Any way to declare a size/partial border to a box?
...But it's very easy to achieve the effect in a way that degrades gracefully and requires no superfluous markup:
div {
width: 350px;
height: 100px;
background: lightgray;
position: relative;
margin: 20px;
}
div:after {
content: '';
width: 60px;
height: 4px;
backgrou...
How do I declare a 2d array in C++ using new?
... rowCount; ++i)
a[i] = new int[colCount];
The above, for colCount= 5 and rowCount = 4, would produce the following:
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