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Singleton: How should it be used
...t; "hello world\n";
Of course not. We don't need protection against this error, because that kind of error just doesn't happen. If it does, the correct response is to go home and sleep for 12-20 hours and hope you feel better.
If only one object is needed, simply create one instance. If one objec...
Read specific columns from a csv file with csv module?
...know if my assumption was wrong. Your posted code has a lot of indentation errors so it was hard to know what was supposed to be where. Hope this was helpful!
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What is the difference between children and childNodes in JavaScript?
...hat IE only got children right in IE 9. childNodes provides less room for error by browser implementors.
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Computed / calculated / virtual / derived columns in PostgreSQL
...stgres 13, yet) .
Related:
Attribute notation for function call gives error
Until then, you can emulate VIRTUAL generated columns with a function using attribute notation (tbl.col) that looks and works much like a virtual generated column. That's a bit of a syntax oddity which exists in Pos...
How do I fetch lines before/after the grep result in bash?
...e the -B and -A to print lines before and after the match.
grep -i -B 10 'error' data
Will print the 10 lines before the match, including the matching line itself.
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What does the keyword Set actually do in VBA?
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In your case, it will produce an error. :-)
Set assigns an object reference. For all other assignments the (implicit, optional, and little-used) Let statement is correct:
Set object = New SomeObject
Set object = FunctionReturningAnObjectRef(SomeArgument)
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Why does the default parameterless constructor go away when you create one with parameters
...ructor that ensures the class' invariant" and it would raise a compilation error.
– Jon Hanna
Aug 26 '12 at 12:23
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Rails update_attributes without save?
..., :is_admin => true }) # Raises an ActiveModel::MassAssignmentSecurity::Error
user.assign_attributes({ :name => 'Bob'})
user.name # => "Bob"
user.is_admin? # => false
user.new_record? # => true
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How to add reference to System.Web.Optimization for MVC-3-converted-to-4 app
...Web.Optimization namespace on the top of the page. But in my progect i get error "the name Scripts does not exist". How can i resolve that? Adding this namespace in web.config didn't help. Edit: reloading solution helped, sorry :)
– Wachburn
Jul 11 '13 at 12:14...
How to set layout_weight attribute dynamically from code?
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answered Jan 9 '11 at 19:05
Erich DouglassErich Douglass
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