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Pandas - Get first row value of a given column
This seems like a ridiculously easy question... but I'm not seeing the easy answer I was expecting.
7 Answers
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Message Queue vs Message Bus — what are the differences?
And are there any? To me, MB knows both subscribers and publishers and acts as a mediator, notifying subscribers on new messages (effectively a "push" model). MQ, on the other hand, is more of a "pull" model, where consumers pull messages off a queue.
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What's the point of map in Haskell, when there is fmap?
...e creators of Haskell feel the need for a map function? Couldn't it just be what is currently known as fmap and fmap could be removed from the language?
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Pretty git branch graphs
I've seen some books and articles have some really pretty looking graphs of git branches and commits. How can I make high-quality printable images of git history?
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How to ignore all hidden directories/files recursively in a git repository?
...wered Nov 5 '11 at 16:18
Daniel BöhmerDaniel Böhmer
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How do I lowercase a string in Python?
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edited Feb 13 '19 at 16:23
Alan W. Smith
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Left Join With Where Clause
I need to retrieve all default settings from the settings table but also grab the character setting if exists for x character.
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Find and replace with sed in directory and sub directories
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edited Feb 19 '14 at 2:35
answered Jul 20 '11 at 8:55
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JavaScript exponents
...ification. It is supposed to work in a similar manner with python and matlab:
a**b // will rise a to the power b
Now it is already implemented in Edge14, Chrome52, and also it is available with traceur or babel.
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How many and which are the uses of “const” in C++?
As a novice C++ programmer there are some constructs that look still very obscure to me, one of these is const . You can use it in so many places and with so many different effects that is nearly impossible for a beginner to come out alive. Will some C++ guru explain once forever the various uses a...