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What's the safest way to iterate through the keys of a Perl hash?
...h of (key, value) pairs, what is the preferred method of iterating through all the keys? I have heard that using each may in some way have unintended side effects. So, is that true, and is one of the two following methods best, or is there a better way?
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Convert list of dictionaries to a pandas DataFrame
...n the structure and format of your data, there are situations where either all three methods work, or some work better than others, or some don't work at all.
Consider a very contrived example.
np.random.seed(0)
data = pd.DataFrame(
np.random.choice(10, (3, 4)), columns=list('ABCD')).to_dict('r...
How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method
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The tilde operator isn't actually part of jQuery at all - it's a bitwise NOT operator in JavaScript itself.
See The Great Mystery of the Tilde(~).
You are getting strange numbers in your experiments because you are performing a bitwise logical operatio...
How to change column datatype in SQL database without losing data
...ing the conversion goes wrong, you can always go back since you still have all the data..
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What does the “+” (plus sign) CSS selector mean?
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So essentially in your example it will match the first <p> after <h1>, but would it also match that same <p> if it came before <h1>? Or is it only after?
– Vincent
Jan 2 '...
Merging between forks in GitHub
... You need to pull from the one remote and push to the other.
If you originally cloned from your fork, that remote will be called "origin". If you haven't added it already, you'll need to add the first person's repository as another remote:
git remote add firstrepo git://github.com/first/repo.git
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I have 2 dates in PHP, how can I run a foreach loop to go through all of those days?
...date 2010-05-01 and ending with 2010-05-10 . How can I iterate through all of those dates in PHP?
11 Answers
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Mercurial undo last commit
How can I undo my last accidentally commited (not pushed) change in Mercurial?
7 Answers
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Change Git repository directory location.
...o I need to do to move the repo files to C:\dir1 ? I can obviously physically copy and paste the files, but what do I need to do on the Git side?
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How are “mvn clean package” and “mvn clean install” different?
...exactly are the differences between mvn clean package and mvn clean install ? When I run both of these commands, they both seem to do the same thing.
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