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Collect successive pairs from a stream
...teful pipeline stages are quite limited, and doing things like getting the index of the current stream element and accessing adjacent stream elements are not supported.
A typical way to solve these problems, with some limitations, of course, is to drive the stream by indexes and rely on having the ...
C++ performance challenge: integer to std::string conversion
...me shortcuts in the sprintf implementation, I already mentioned that in my question, but I believe the code-to-beat gives exactly the same result as stringstream.
– Ben Voigt
Dec 4 '10 at 2:57
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Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
... need to find what the duplicated values are - I don't actually need their indexes or how many times they are duplicated.
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In Clojure, when should I use a vector over a list, and the other way around?
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When to use a vector:
Indexed access performance - You get ~O(1) cost for indexed access vs. O(n) for lists
Appending - with conj is ~O(1)
Convenient notation - I find it both easier to type and to read [1 2 3] than '(1 2 3) for a literal list in ...
Why is “final” not allowed in Java 8 interface methods?
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This question is, to some degree, related to What is the reason why “synchronized” is not allowed in Java 8 interface methods?
The key thing to understand about default methods is that the primary design goal is interface evo...
Importing a CSV file into a sqlite3 database table using Python
...= pandas.read_csv(csvfile)
df.to_sql(table_name, conn, if_exists='append', index=False)
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Set element focus in angular way
...how I could conditionally set a focus function for <input> based on $index for example?
– Garret Wilson
Jan 26 '18 at 22:08
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Google Chrome Printing Page Breaks
..."display: block;position: relative;page-break-before:always">Grade <?php echo $grade;?></h7>
– Gavin Simpson
Feb 8 '15 at 7:05
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(![]+[])[+[]]… Explain why this works
...cification, (that's why the charAt method existed).
However this kind of "index properties" that represent the characters of a string were standardized on ECMAScript 5, and even before the standardization the feature was available in a good number of browsers (even in IE8 (standards mode)).
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Should Gemfile.lock be included in .gitignore?
...at I have made to it on my machine. To accomplish this, I run:
git update-index --assume-unchanged Gemfile.lock
and to reverse:
git update-index --no-assume-unchanged Gemfile.lock
It is also useful to include something like the following code in your Gemfile. This loads the appropriate databas...