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Removing multiple keys from a dictionary safely

I know how to remove an entry, 'key' from my dictionary d , safely. You do: 14 Answers ...
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.htaccess rewrite to redirect root URL to subdirectory

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lenses, fclabels, data-accessor - which library for structure access and mutation is better

There are at least three popular libraries for accessing and manipulating fields of records. The ones I know of are: data-accessor, fclabels and lenses. ...
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How can I use numpy.correlate to do autocorrelation?

I need to do auto-correlation of a set of numbers, which as I understand it is just the correlation of the set with itself. ...
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How do I modify fields inside the new PostgreSQL JSON datatype?

With postgresql 9.3 I can SELECT specific fields of a JSON data type, but how do you modify them using UPDATE? I can't find any examples of this in the postgresql documentation, or anywhere online. I have tried the obvious: ...
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What's the fastest way to loop through an array in JavaScript?

I learned from books that you should write for loop like this: 22 Answers 22 ...
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What's the difference between `1L` and `1`?

I often seen the symbol 1L (or 2L , 3L , etc) appear in R code. Whats the difference between 1L and 1 ? 1==1L evaluates to TRUE . Why is 1L used in R code? ...
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Able to push to all git remotes with the one command?

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Extract elements of list at odd positions

So I want to create a list which is a sublist of some existing list. 5 Answers 5 ...
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How to make vi redraw screen?

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