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Building big, immutable objects without using constructors having long parameter lists
...ver you give them a mutable object named Immutable that simply needs to be cast to it's mutable interface. The separate class approach requires methods to convert back and forth. The JodaTime API uses this pattern. See DateTime and MutableDateTime.
– toolbear
A...
Abstract classes in Swift Language
... of the method. When logSalary is called on the instance after it has been cast to an Employee, it calls the original implementation (it doesn't not dynamically dispatch to the overridden version even though the instance is actually a Software Engineer.
For more information, check great WWDC video ...
How to see if an object is an array without using reflection?
...e value of the RelationalExpression is not null and the reference could be cast to the ReferenceType without raising a ClassCastException. Otherwise the result is false.
That means you can do something like this:
Object o = new int[] { 1,2 };
System.out.println(o instanceof int[]); // prints "true"...
What is the difference between IQueryable and IEnumerable?
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The only benefit is convenience. AsQueryable() will just cast an enumerable to a queryable and return it if it implements the IQueryable interface, otherwise it wraps it in a ConstantExpression, which is referred to in a returned EnumerableQuery object.
– Mar...
renderpartial with null model gets passed the wrong type
...make sense to me, but it appears to be what it is doing. You will have to cast it to an object for it to select the correct constructor.
– Joel McBeth
Jul 27 '11 at 15:15
1
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how to pass an integer as ConverterParameter?
...ueConverter.Convert()'s "parameter" parameter is object. You still have to cast/parse it...
– Dan J
Aug 2 '11 at 16:11
6
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Convert a string to an enum in C#
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I have updated this to take the value as object and cast it to string inside this method. This way I can take an int value .ToEnum instead of strings only.
– RealSollyM
Feb 14 '14 at 12:05
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How to convert a String to its equivalent LINQ Expression Tree?
...
{
var invokedExpr = Expression.Invoke(expr2, expr1.Parameters.Cast<Expression>());
return Expression.Lambda<Func<T, TResult>>(Expression.AndAlso(expr1.Body, invokedExpr), expr1.Parameters);
}
public static Func<T, TResult> ExpressionToFunc<T, ...
How to remove items from a list while iterating?
... Python lists, with minimal modifications. For instance, not all languages cast empty lists to a False as Python does. You can substitute while somelist: for something more explicit like while len(somelist) > 0:.
share
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Is returning by rvalue reference more efficient?
...g by rvalue can be more efficient. std::move() is just used as an explicit cast to illustrate the point more clearly. It's not a code you would copy-paste into your project. It doesn't contradict top-voted answer, because there temporary object is created inside the function. Here returned object is...