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Why is TypedReference behind the scenes? It's so fast and safe… almost magical!

... Short answer: portability. While __arglist, __makeref, and __refvalue are language extensions and are undocumented in the C# Language Specification, the constructs used to implement them under the hood (vararg calling convention, TypedReference type, arglist, refanytype, mkanyref...
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How to compare two colors for similarity/difference

...etween 5 pre-defined colors which one is more similar to a variable color, and with what percentage. The thing is that I don't know how to do that manually step by step. So it is even more difficult to think of a program. ...
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git remove merge commit from history

...e the branches diverged> this will allow you to remove the merge commit and the log will be one single line as you wanted. You can also delete any commits that you do not want any more. The reason that your rebase wasn't working was that you weren't going back far enough. WARNING: You are rew...
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Python and pip, list all versions of a package that's available?

...l the possible versions of it that pip could install? Right now it's trial and error. 16 Answers ...
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In Python, what is the difference between “.append()” and “+= []”?

...d will add one item to the list, while += will copy all elements of right-hand-side list into the left-hand-side list. Update: perf analysis Comparing bytecodes we can assume that append version wastes cycles in LOAD_ATTR + CALL_FUNCTION, and += version -- in BUILD_LIST. Apparently BUILD_LIST outw...
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Flexbox: center horizontally and vertically

How to center div horizontally, and vertically within the container using flexbox. In below example, I want each number below each other (in rows), which are centered horizontally. ...
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Git ignore sub folders

...t of projects in my .Net solution. I would like to exclude all "bin/Debug" and "bin/Release" folders (and their contents), but still include the "bin" folder itself and any dll's contained therein. ...
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How to customize a requirements.txt for multiple environments?

I have two branches, Development and Production. Each has dependencies, some of which are different. Development points to dependencies that are themselves in development. Likewise for Production. I need to deploy to Heroku which expects each branch's dependencies in a single file called 'requiremen...
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How do I set a variable to the output of a command in Bash?

... In addition to backticks `command`, command substitution can be done with $(command) or "$(command)", which I find easier to read, and allows for nesting. OUTPUT=$(ls -1) echo "${OUTPUT}" MULTILINE=$(ls \ -1) echo "${MULTILINE}" Quoting (") does ma...
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How to define a two-dimensional array?

...sion that could arise with the indexing, if you use "x" for both the inner and outer lists, and want a non-square Matrix. share | improve this answer | follow ...