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Removing duplicates from a list of lists
...[[1, 2], [4], [5, 6, 2], [3]]
Simple to comprehend, and you preserve the order of the first occurrence of each element should that be useful, but I guess it's quadratic in complexity as you're searching the whole of new_k for each element.
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What is sandboxing?
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Are there conventions on how to name resources?
... I do this to, only I'd rather shorten the layout and widget names, in order to avoid long names, for example the username edit box on authentication layout would be: "au_eb_username" instead of "authentication_editbox_username"
– Hossein Shahdoost
Apr 22 '...
Best way to compare two complex objects
...rating a data stream, appending strings, and then testing string equality. Orders of magnitude, just in that. Not to mention serialization is going to be using reflection by default.
– Jerome Haltom
May 19 '17 at 15:06
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How do you implement a good profanity filter?
...(something that Stack Overflow does well) is helpful also, particularly in order to help combat John Gabriel's G.I.F.T.
You also asked where you can get profanity lists to get you started -- one open-source project to check out is Dansguardian -- check out the source code for their default profanit...
What does the question mark operator mean in Ruby?
...ruby 1.9:
"F".ord
Also notice that ?F will return the string "F", so in order to make the code shorter, you can also use ?F.ord in Ruby 1.9 to get the same result as "F".ord.
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Is it possible to write to the console in colour in .NET?
...not be garbled. See stackoverflow.com/questions/4812508/…. It's just the order of the write-calls which is not "safe".
– BatteryBackupUnit
Oct 17 '17 at 9:29
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How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
.../java_home -v '1.7*' to give you a suitable value to put into JAVA_HOME in order to make command line tools use Java 7.
export JAVA_HOME="`/usr/libexec/java_home -v '1.7*'`"
But standard double-clickable application bundles don't use JDKs installed under /Library/Java at all. Old-style .app bund...
Storing money in a decimal column - what precision and scale?
...However, rather than a one-size-fits-all approach, some research may be in order. Ask your designer or domain expert about accounting rules which may be applicable: GAAP, EU, etc. I vaguely recall some EU intra-state transfers with explicit rules for rounding to five decimal places, therefore using ...
What is PAGEIOLATCH_SH wait type in SQL Server?
... like this:
Select * from <table> where <col1> = <value> order by <PrimaryKey>
, check that you have a composite index on (col1, col_primary_key).
If you don't have one, then you'll need either a full INDEX SCAN if the PRIMARY KEY is chosen, or a SORT if an index on col1 is ...