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Understanding slice notation

I need a good explanation (references are a plus) on Python's slice notation. 33 Answers ...
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Daylight saving time and time zone best practices [closed]

I am hoping to make this question and the answers to it the definitive guide to dealing with daylight saving time, in particular for dealing with the actual change overs. ...
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When would you call java's thread.run() instead of thread.start()?

When would you call Java's thread.run() instead of thread.start() ? 14 Answers 14 ...
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How can I use if/else in a dictionary comprehension?

Does there exist a way in Python 2.7+ to make something like the following? 4 Answers ...
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Replace all non Alpha Numeric characters, New Lines, and multiple White Space with one Space

I'm looking for a neat RegEx solution to replace 8 Answers 8 ...
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Is there a NumPy function to return the first index of something in an array?

I know there is a method for a Python list to return the first index of something: 13 Answers ...
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p vs puts in Ruby

Is there any difference between p and puts in Ruby? 7 Answers 7 ...
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How does JavaScript .prototype work?

I'm not that into dynamic programming languages but I've written my fair share of JavaScript code. I never really got my head around this prototype-based programming, does any one know how this works? ...
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Sort a Map by values

I am relatively new to Java, and often find that I need to sort a Map<Key, Value> on the values. 58 Answers ...
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What does %~dp0 mean, and how does it work?

I find %~dp0 very useful, and I use it a lot to make my batch files more portable. 7 Answers ...