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Why does Convert.ToString(null) return a different value if you cast null?
...String(string s);
The C# compiler essentially tries to pick the most specific overload which will work with the input. A null value is convertible to any reference type. In this case string is more specific than object and hence it will be picked as the winner.
In the null as object you've so...
Import CSV to SQLite
...v foo
The first command creates the column names for the table. However, if you want the column names inherited from the csv file, you might just ignore the first line.
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How do I use Wget to download all images into a single folder, from a URL?
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Try this:
wget -nd -r -P /save/location -A jpeg,jpg,bmp,gif,png http://www.somedomain.com
Here is some more information:
-nd prevents the creation of a directory hierarchy (i.e. no directories).
-r enables recursive retrieval. See Recursive Download for more information.
-P se...
What is the usefulness of `enable_shared_from_this`?
...;Y>(this);
}
}
The shared pointer that this returned will have a different reference count from the "proper" one, and one of them will end up losing and holding a dangling reference when the object is deleted.
enable_shared_from_this has become part of C++ 11 standard. You can also get it ...
How to delete/unset the properties of a javascript object? [duplicate]
...to remove/unset the properties of a JS object so they'll no longer come up if I loop through the object doing for (var i in myObject) . How can this be done?
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Does static constexpr variable inside a function make sense?
If I have a variable inside a function (say, a large array), does it make sense to declare it both static and constexpr ? constexpr guarantees that the array is created at compile time, so would the static be useless?
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What's the meaning of * (asterisk) in XAML ColumnDefinition?
...ny available remaining space
The * is prefixed by a number (default is 1 if no number is specified). The available space is divided among the starred columns in proportion to the prefix number.
If you have this definition
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0.07*"/>
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SQL Switch/Case in 'where' clause
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This is will give a slightly different result as the Case statement exits after a condition is met - but the OR syntax will evaluate all the possibilities
– tember
May 12 '15 at 18:27
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How do I disable text selection with CSS or JavaScript? [duplicate]
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Note that it's a non-standard feature (i.e. not a part of any specification). It is not guaranteed to work everywhere, and there might be differences in implementation among browsers and in the future browsers can drop support for it.
More information can be found in Mozilla Developer Ne...
Defining an abstract class without any abstract methods
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If the question can be answered with a simple yes or no, then the asker should consider rephrasing, using Google, or simply trying it out.
– Tyler Treat
Jan 27 '11 at 0:24
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