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Python try…except comma vs 'as' in except
What is the difference between ',' and 'as' in except statements, eg:
5 Answers
5
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MySQL DISTINCT on a GROUP_CONCAT()
...ct to each other ("test1 test2 test3" is distinct than "test1 test3", even if some tests contained in the whole string are duplicated).
What we need to do here is to split each string into different rows, and we first need to create a numbers table:
CREATE TABLE numbers (n INT);
INSERT INTO number...
Find rows with multiple duplicate fields with Active Record, Rails & Postgres
...l).having("count(*) > 1")
Also, this is a little unrelated but handy. If you want to see how times each combination was found, put .size at the end:
User.select(:first,:email).group(:first,:email).having("count(*) > 1").size
and you'll get a result set back that looks like this:
{[nil, n...
How do I use FileSystemObject in VBA?
...stbox
Click on the OK button.
This can also be done directly in the code if access to the VBA object model has been enabled.
Access can be enabled by ticking the check-box Trust access to the VBA project object model found at File > Options > Trust Center > Trust Center Settings > Mac...
Asterisk in function call
... and expands it into actual positional arguments in the function call.
So if uniqueCrossTabs was [ [ 1, 2 ], [ 3, 4 ] ], then itertools.chain(*uniqueCrossTabs) is the same as saying itertools.chain([ 1, 2 ], [ 3, 4 ])
This is obviously different from passing in just uniqueCrossTabs. In your case, ...
What is javax.inject.Named annotation supposed to be used for?
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Use @Named to differentiate between different objects of the same type bound in the same scope.
@Named("maxWaitTime")
public long maxWaitTimeMs;
@Named("minWaitTime")
public long minWaitTimeMs;
Without the @Named qualifier, the injecto...
How to get the list of properties of a class?
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@Tadej what framework are you targeting? if you're using .NET core you need to ensure you have the using System.Reflection directive and the System.Reflection.TypeExtensions package referenced - this provides the missing API surface via extension methods
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How do I loop through a date range?
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This will be inclusive of the first date. If you dont want that, just change the 'var day = from.Date' to 'var day = from.Date.AddDays(dayInterval)'
– SwDevMan81
Dec 4 '09 at 15:29
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Fatal error: use of unimplemented initializer 'init(coder:)' for class
I decided to continue my remaining project with Swift. When I add the custom class (subclass of UIViewcontroller ) to my storyboard view controller and load the project, the app crashes suddenly with the following error:
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How is Generic Covariance & Contra-variance Implemented in C# 4.0?
...ce conversion instead.)
Hope this clears it up a bit - please let me know if it doesn't make sense!
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