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What is the correct way to represent null XML elements?
...ng the element empty - This could indicate that the series is "", or is unknown, or that the book is not part of a series. Any xsl transform (or other evernt based parser) that matches book:series will be called. The value of current() will be "". You will get the same number of xhtml:td tags using ...
How to create NSIndexPath for TableView
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For Swift 3 it's now: IndexPath(row: rowIndex, section: sectionIndex)
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Comma separator for numbers in R?
...ave been true in the past that comma_format didn't handle real numbers but now you can do the following: scales::comma_format(digits = 12)(1000000.789) which results in the following: "1,000,000.789".
– steveb
Mar 20 '17 at 18:50
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How do lexical closures work?
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There is one problem with this solution: func has now two parameters. That means it doesn't work with a variable amount of parameters. Worse, if you call func with a second parameter this will overwrite the original i from the definition. :-(
– Pascal
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Why does the C++ STL not provide any “tree” containers?
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I disagree with this answer, both in 2008 and now. The standard library does not "have" boost, and the availability of something in boost should not be (and has not been) a reason not to adopt it into the standard. Additionally, the BGL is general and involved enough to ...
Python and pip, list all versions of a package that's available?
...ut a list of all the possible versions of it that pip could install? Right now it's trial and error.
16 Answers
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What is “overhead”?
...t perform the sum operation using recursion but without tail-elimination. Now, in addition to the memory overhead for our list we're also introducing stack overhead (which is a different sort of memory and is often a more limited resource than other forms of memory).
Yet another (arguably more abs...
How to change color in markdown cells ipython/jupyter notebook?
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The "font" tag is now deprecated. You can use the "span" tag with the style attribute instead.
– Paul
2 days ago
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Find the min/max element of an Array in JavaScript
...lleague tries to get the alphabetically-latest string in an array with the now-well-documented native .max() method, but mysteriously gets NaN. Hours later, she finds this code, runs a git blame, and curses your name.
– Mark Amery
Feb 14 '15 at 0:21
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Name of this month (Date.today.month as name)
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For Ruby 1.9 I had to use:
Time.now.strftime("%B")
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