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SparseArray vs HashMap
...replace HashMap when the key is a primitive type.
There are some variants for different key/value types, even though not all of them are publicly available.
Benefits are:
Allocation-free
No boxing
Drawbacks:
Generally slower, not indicated for large collections
They won't work in a non-Androi...
How to apply an XSLT Stylesheet in C#
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I found a possible answer here: http://web.archive.org/web/20130329123237/http://www.csharpfriends.com/Articles/getArticle.aspx?articleID=63
From the article:
XPathDocument myXPathDoc = new XPathDocument(myXmlFile) ;
XslTransform myXslTrans = new XslTransform() ;
myXslTrans...
Persistent invalid graphics state error when using ggplot2
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I ran into this same error and solved it by running:
dev.off()
and then running the plot again. I think the graphics device was messed up earlier somehow by exporting some graphics and it didn't get reset. This worked for me and it's simpler tha...
How should I copy Strings in Java?
At this point, the backup variable still contains the original value "hello" (this is because of String's immutability right?).
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How to remove all leading zeroes in a string
... convert the string to an integer. See the comments on Svisstack's answer for why this is not such a great solution.
– lonesomeday
Apr 18 '16 at 8:15
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Using Moq to mock an asynchronous method for a unit test
I am testing a method for a service that makes a Web API call. Using a normal HttpClient works fine for unit tests if I also run the web service (located in another project in the solution) locally.
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Haskell composition (.) vs F#'s pipe forward operator (|>)
In F#, use of the the pipe-forward operator, |> , is pretty common. However, in Haskell I've only ever seen function composition, (.) , being used. I understand that they are related , but is there a language reason that pipe-forward isn't used in Haskell or is it something else?
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SQLite Reset Primary Key Field
...TE_SEQUENCE table is created and
initialized automatically whenever a
normal table that contains an
AUTOINCREMENT column is created. The
content of the SQLITE_SEQUENCE table
can be modified using ordinary UPDATE,
INSERT, and DELETE statements. But
making modifications to this table
w...
Performing regex Queries with pymongo
I am trying to perform a regex query using pymongo against a mongodb server. The document structure is as follows
4 Answers...
How to Right-align flex item?
Is there a more flexbox-ish way to right-align "Contact" than to use position: absolute ?
13 Answers
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