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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...
Calculate a percent with SCSS/SASS
...want to set a width in percentage in scss via calculation, but it gives me errors..
3 Answers
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Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.
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I also had this error, but could only fix it through the suggestion here.
To summarize, use:
127.0.0.1
Instead of:
localhost
The reason is that "localhost" is a special name for the MySQL driver making it use the UNIX socket to connec...
Docker how to change repository name or rename image?
...e, using the full ID somehow appends :latest to the end of it and gives an error claiming it couldn't find it. The first 3 letters works much better. (i.e. docker tag d583c3ac45fd myname/server:latest doesn't work whereas docker tag d58 myname/server:latest works.)
– John Hamil...
How to undo “git commit --amend” done instead of “git commit”
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For some reason, I was getting an error when running git reset --soft HEAD@{1}: fatal: ambiguous argument 'HEAD@1': unknown revision or path not in the working tree. Use '--' to separate paths from revisions. When I replaced HEAD@{1} with the equivalent commi...
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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Ignore fields from Java object dynamically while sending as JSON from Spring MVC
...egister custom serializer for java.util.Date class(no runtime/compile time error) were as for string I was able to register custom serializer.
– Ninad
Mar 5 '19 at 7:06
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What are the best practices for using Assembly Attributes?
...me and versioning information should be removed (and will cause a compiler error if they are duplicated). Ideally, the AssemblyInfo files will not be updated by the build process.
– David Keaveny
Jun 2 '11 at 2:48
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