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How to sum a variable by group
...h that "natural-language interpretation" of the tilde operator, it becomes more meaningful (and even intuitive). I personally find this symbolic formula representation better than some of the more verbose alternatives.
– r2evans
Dec 19 '16 at 4:35
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nonlocal keyword in Python 2.x
...ry class and instantiate object instead of the dictionary. I find it much more elegant and readable since it does not flood the code with literals (dictionary keys), plus you can make use of methods.
– Alois Mahdal
Aug 15 '13 at 13:19
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How do I concatenate two arrays in C#?
... @manthrax -> In its defense, C# tends to favor lists which are much more powerful than arrays. It seems the only functional purpose for using arrays is for Interop calls (Unmanaged C++).
– Levi Fuller
Oct 26 '15 at 22:40
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Why is using the JavaScript eval function a bad idea?
...oper use of eval opens up your
code for injection attacks
Debugging can be more challenging
(no line numbers, etc.)
eval'd code executes slower (no opportunity to compile/cache eval'd code)
Edit: As @Jeff Walden points out in comments, #3 is less true today than it was in 2008. However, while some...
How to convert an int value to string in Go?
...ions names like "Itoa" were preferable to something that might be a little more descriptive?
– Luke
Jul 17 '16 at 20:27
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How to insert element into arrays at specific position?
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Why does C++ compilation take so long?
...because templates generally have to be defined in headers,
which means far more code has to be parsed and compiled for every compilation unit.
In plain C code, a header typically only contains forward declarations, but very little actual code.
In C++, it is not uncommon for almost all the code to re...
Some built-in to pad a list in python
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I think this approach is more visual and pythonic.
a = (a + N * [''])[:N]
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How to force Chrome browser to reload .css file while debugging in Visual Studio?
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There are much more complicated solutions, but a very easy, simple one is just to add a random query string to your CSS include.
Such as src="/css/styles.css?v={random number/string}"
If you're using php or another server-side language, ...
What is the difference between bottom-up and top-down?
...rmination, and thus the bottom of the tree may be infinitely large. Furthermore, in some problems you might not know what the full tree looks like ahead of time. Thus, you might need a strategy/algorithm to decide which subproblems to reveal.)
Memoization, Tabulation
There are at least two main ...