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Visual Studio Expand/Collapse keyboard shortcuts [duplicate]

...code file open, I can press CTRL + M or CTRL + M + O to collapse all code blocks, regions, namespaces, etc. 7 Ans...
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detach all packages while working in R

...*) is not necessary but can be useful to prevent the NULL reply from vertically spamming the R window. (edit: 9/20/2019) In version 3.6.1 It may be helpful to convert loaded only names(sessionInfo()$loadedOnly) to explicitly attached packages first, and then detach the packages, as so. lapply(names(...
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How to join (merge) data frames (inner, outer, left, right)

...nner join: merge(df1, df2) will work for these examples because R automatically joins the frames by common variable names, but you would most likely want to specify merge(df1, df2, by = "CustomerId") to make sure that you were matching on only the fields you desired. You can also use the by.x and b...
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Is there a Python Library that contains a list of all the ascii characters?

...>> string.ascii_uppercase 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' If you want all printable characters: >>> string.printable '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#$%&\'()*+,-./:;?@[\\]^_`{|}~ \t\n\r\x0b\x0c' ...
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Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?

...ple in unit testing. However, in a loosely coupled application, by moving all the references to the Composition Root, the dependency graph is severely flattened: As illustrated by the green color, it's now possible to reuse Library C without dragging along any unwanted dependencies. However, al...
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Why shouldn't all functions be async by default?

...kind words. It is indeed an awesome feature and I am glad to have been a small part of it. If all my code is slowly turning async, why not just make it all async by default? Well, you're exaggerating; all your code isn't turning async. When you add two "plain" integers together, you're not awa...
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How can I get all constants of a type by reflection?

How can I get all constants of any type using reflection? 4 Answers 4 ...
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What are the main disadvantages of Java Server Faces 2.0?

...ts which seem to make development much faster than with ASP.NET MVC, especially on AJAX-heavy sites. Integration testing looked very nice too. ...
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What is the reason not to use select *?

I've seen a number of people claim that you should specifically name each column you want in your select query. 20 Answers ...
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C state-machine design [closed]

I am crafting a small project in mixed C and C++. I am building one small-ish state-machine at the heart of one of my worker thread. ...