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Why don't they teach these things in school? [closed]

...e very expensive. We'd need to run a complete, realistic software project from beginning to end, numerous times, with groups of programmers that have equivalent expertise, using different techniques. At the very least we'd need lots of data about existing projects which those projects would be unw...
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How to append one file to another in Linux from the shell?

...d just within a few seconds, 50 million lines have been put in to the file from just previously a few dozen lines. – Hendra Uzia Mar 20 '17 at 6:56 ...
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from list of integers, get number closest to a given value

...uilt-in min() function, to find the element which has the minimum distance from the specified number. >>> min(myList, key=lambda x:abs(x-myNumber)) 4 Note that it also works with dicts with int keys, like {1: "a", 2: "b"}. This method takes O(n) time. If the list is already sorted, or...
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Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?

The section "Avoid Enums Where You Only Need Ints" was removed from the official developer documentation . (See Why doesn't Android use more enums? for the old section content) ...
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Why call git branch --unset-upstream to fixup?

...s case. Their purpose is to record things like the full URL of the places from which you git fetch or git pull updates. When you use git fetch remote,1 Git goes to that remote (using the saved URL) and brings over the appropriate set of updates. It also records the updates, using "remote-tracking...
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Generate a heatmap in MatPlotLib using a scatter data set

...r see this question stackoverflow.com/questions/17201172/… and simply do from matplotlib.colors import LogNorm plt.imshow(heatmap, norm=LogNorm()) plt.colorbar() – tommy.carstensen Mar 16 '15 at 20:25 ...
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Calling a function from a string in C#

... what about methods from a "string" class ? using framework 4 – Leandro Jul 20 '17 at 15:18 ...
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Getting Spring Application Context

...irkby Using the singleton pattern means instanciating your container class from a static method within your container class... once you "manually" instanciate an object it is not managed by Spring anymore : how did you tackle this problem ? – Antonin Oct 16 '17...
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How to make shallow git submodules?

...pth has one more chance to succeed, even if the SHA1 is directly reachable from one of the remote repo HEADs. See commit fb43e31 (24 Feb 2016) by Stefan Beller (stefanbeller). Helped-by: Junio C Hamano (gitster). (Merged by Junio C Hamano -- gitster -- in commit 9671a76, 26 Feb 2016) submodul...
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What is std::move(), and when should it be used?

...is a cast that produces an rvalue-reference to an object, to enable moving from it. It's a new C++ way to avoid copies. For example, using a move constructor, a std::vector could just copy its internal pointer to data to the new object, leaving the moved object in an moved from state, therefore no...