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Extension method and dynamic object
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It might be more readable to cast back to the know type, this works: Console.WriteLine(((List<int>)dList).First()); Or Console.WriteLine((dList as List<int>).First());.
– AVee
Jun 18 '19 at 13:46
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Does PowerShell support constants?
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To use a specific type of value, say Int64, you can explicitly cast the value used in set-variable.
For instance:
set-variable -name test -value ([int64]100) -option Constant
To check,
$test | gm
And you'll see that it is an Int64 (rather than Int32, which would be normal for the...
Value Change Listener to JTextField
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good format for the warning/type cast. Same pattern will be useful for handling double amounts (sales figures/prices entered or displayed)
– Max West
Oct 13 '14 at 14:31
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Can't operator == be applied to generic types in C#?
...gt;.Default.Equals(x, y);
}
Aside from anything else, this avoids boxing/casting.
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Rails detect if request was AJAX
...context, you have to treat them not as not booleans, but ones that will be cast to bool. Above env['HTTP_X_REQUESTED_WITH'] =~ /XMLHttpRequest/ returns 0 not false. And 0 is actually truthy, not falsey in ruby: 0 || 1 => 0 But I'm going to alter my post for clarity.
– pixele...
How do I set a conditional breakpoint in gdb, when char* x points to a string whose value equals “he
...gdb might not know the return type of strcmp. That means you would have to cast, otherwise it would always evaluate to true!
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How can I return an empty IEnumerable?
...ange things if he returned, say, new List<Friend>() since it will be cast to IEnumerable<Friend> when returned from that method?
– Sarah Vessels
Jul 12 '10 at 16:57
73
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How can I make Array.Contains case-insensitive on a string array?
...ng case insensitivity into account) is at least possible like this, with a cast:
if ( ((IList<string>)mydotNet2Array).Contains(“str”) )
{}
As the Contains() method is part of the IList interface, this works not only with arrays, but also with lists, etc.
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Using Linq to get the last N elements of a collection?
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You can solve this problem by explicitly casting mystring to IEnumerable<String>: ((IEnumerable<String>)mystring).Reverse().Take(2).Reverse()
– Jan Hettich
Aug 17 '11 at 18:08
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Differences between fork and exec
...he "exec" functions to create the child process
execvp (argv[0], const_cast<char**>(argv));
} else { // This is the Parent Process
//Continue executing parent process
}
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