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What is a memory fence?
...are concept. In higher level languages we are used to dealing with mutexes and semaphores - these may well be implemented using memory fences at the low level and explicit use of memory barriers are not necessary. Use of memory barriers requires a careful study of the hardware architecture and more ...
How to check if all elements of a list matches a condition?
...ne this with a generator expression to produce the result you want cleanly and efficiently. For example:
>>> items = [[1, 2, 0], [1, 2, 0], [1, 2, 0]]
>>> all(flag == 0 for (_, _, flag) in items)
True
>>> items = [[1, 2, 0], [1, 2, 1], [1, 2, 0]]
>>> all(flag == ...
How to parse an RSS feed using JavaScript?
I need to parse an RSS feed (XML version 2.0) and display the parsed details in an HTML page.
8 Answers
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How to find difference between two Joda-Time DateTimes in minutes
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No I disagree, it's too wordy and unclear: "The minutes minutes between punch time date time" is worse than "second date milliseconds minus first date milliseconds"
– Jonathan Neufeld
Feb 19 '15 at 23:11
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Differences between Agda and Idris
I'm starting to dive into dependently-typed programming and have found that the Agda and Idris languages are the closest to Haskell, so I started there.
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How do I read CSV data into a record array in NumPy?
...o a record array, much in the way that R's read.table() , read.delim() , and read.csv() family imports data to R's data frame?
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Differences in string compare methods in C#
...the block below. What I am curious about are the differences between them and when one should be used over the others? Should one be avoided at all costs? Are there more I haven't listed?
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Vim indent xml file
...want to format.
Then, in normal mode, type ! xmllint --format -
Your command-line at the bottom will look like this:
:'<,'>!xmllint --format -
Then hit enter.
Technical Explanation
The selected text is sent to the xmllint command, then --format'ed, and the results of xmllint are placed o...
.NET List Concat vs AddRange
What is the difference between the AddRange and Concat functions on a generic List? Is one recommended over the other?
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Why do you need to create a cursor when querying a sqlite database?
I'm completely new to Python's sqlite3 module (and SQL in general for that matter), and this just completely stumps me. The abundant lack of descriptions of cursor objects (rather, their necessity) also seems odd.
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