大约有 15,640 项符合查询结果（耗时：0.0297秒） [XML]
Using Case/Switch and GetType to determine the object [duplicate]
...lection is expensive. Great for handling multiple exceptions and reporting errors etc but if you are using it hundreds of times then it is a poor solution.
– rolls
Oct 30 '16 at 22:35
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Reset push notification settings for app
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When I try this in the simulator, I'm getting the error Code=3010 "remote notifications are not supported in the simulator"
– Thomas Zimmer
Aug 11 '15 at 13:42
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Using port number in Windows host file
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I get Error 400 Bad Request when i use this method
– Sam
Mar 12 '15 at 15:17
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Postgres - FATAL: database files are incompatible with server
...This worked like a charm, however, after it worked, it introduced a second error, remember to upgrate the db created by initdb using brew postgresql-upgrade-database then restart postgres
– Shemogumbe
Jul 3 '19 at 10:50
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Adjust width and height of iframe to fit with content in it
...don't forget it's not cross domain. Reason of which it's getting a kind of Error: Permission denied to access property 'document' if the domain is different. A solution can be found here
– Pierre de LESPINAY
Nov 12 '12 at 16:25
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Mixing C# & VB In The Same Project
...e .cs files. It was ignoring the other ones, therefore you did not receive errors.
Edit: If you add a .vb file to a C# project, select the file in the Solution Explorer panel and then look at the Properties panel, you'll notice that the Build Action is 'Content', not 'Compile'. It is treated as a si...
How to create index on JSON field in Postgres?
...ried it using the -> operator used for hstore but got the following error:
1 Answer
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How to sort a list of objects based on an attribute of the objects?
...u might want to do the following, then:
try: import operator
except ImportError: keyfun= lambda x: x.count # use a lambda if no operator module
else: keyfun= operator.attrgetter("count") # use operator since it's faster than lambda
ut.sort(key=keyfun, reverse=True) # sort in-place
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Why implement interface explicitly?
...to change their method signatures.
cleaner code: there will be a compiler error if the Clone method is removed from ICloneable, however if you implement the method implicitly you can end up with unused 'orphaned' public methods
strong typing:
To illustrate supercat's story with an example, this wo...
Skip callbacks on Factory Girl and Rspec
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Rails 5 - skip_callback raising Argument error when skipping from a FactoryBot factory.
ArgumentError: After commit callback :whatever_callback has not been defined
There was a change in Rails 5 with how skip_callback handles unrecognized callbacks:
ActiveSup...