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Visual Studio: Is there a way to collapse all items of Solution Explorer?

I know that I can use Arrow Keys to collapse items of solution explorer one by one, but I would like to know if there is a way to collapse all items with only one operation. I want to know it because, today I have a solution with 6 projects that have at least two hundred files and if I try to coll...
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Swift: Testing optionals for nil

...ing with possXYZ (the unwrapped value of xyz) } else { // do something now that we know xyz is .None } This way you can both test if xyz contains a value and if so, immediately work with that value. With regards to your compiler error, the type UInt8 is not optional (note no '?') and therefor...
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Firing a double click event from a WPF ListView item using MVVM

...art (workflow). Furthermore, you are able to unit test the logic part. I know enough scenarios where you have to write code behind because data binding is not a solution to everything. In your scenario I would handle the DoubleClick event in the code behind file and delegate this call to the ViewMo...
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Difference between / and /* in servlet mapping url pattern

...to let the request continue to any of the servlets listening on a more specific URL pattern by calling FilterChain#doFilter(). <url-pattern>/</url-pattern> The / doesn't override any other servlet. It only replaces the servletcontainer's builtin default servlet for all requests which doe...
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Dynamically creating keys in a JavaScript associative array

...l = dict["2bob2"]; // Read value of our cool secret key val = dict[key]; Now let's change values: // Change the value of fred dict.fred = "astra"; // The assignment creates and/or replaces key-value pairs // Change the value of 2bob2 dict["2bob2"] = [1, 2, 3]; // Any legal value can be used // ...
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Java: Why is the Date constructor deprecated, and what do I use instead?

... as java.util.Date, java.util.Calendar, and java.text.SimpleDateFormat are now legacy, supplanted by the java.time classes built into Java 8 and later. See Tutorial by Oracle. – Basil Bourque Nov 28 '18 at 19:18 ...
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Include an SVG (hosted on GitHub) in MarkDown

I know with that an image can be placed in a MD with the MD syntax of either ![Alt text](/path/to/img.jpg) or ![Alt text](/path/to/img.jpg "Optional title") , but I am having difficulty placing an SVG in MD where the code is hosted on GitHub. ...
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Virtual Serial Port for Linux

...en another terminal and write (Terminal 2): echo "Test" > /dev/pts/3 Now back to Terminal 1 and you'll see the string "Test". share | improve this answer | follow ...
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How can I resolve “Error: No developer directory found at /Developer”?

...using a script to build (and then deploy through Testflight) my app. But I now receive this error: 4 Answers ...
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How to delete a property from Google Analytics

...nalytics, but there is no delete option on the property page. Does anyone know how to delete a property from Google Analytics? ...