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How to pass boolean values to a PowerShell script from a command prompt
...even have to specify the problematic boolean parameter on the command line now. Excellent :)
– Zeek2
Mar 29 '18 at 7:39
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Cast List to List
...uit.Add(new Banana());
// Eek - it's a banana!
Apple apple = apples[0];
Now you can convert a List<Apple> to an IEnumerable<IFruit> in .NET 4 / C# 4 due to covariance, but if you want a List<IFruit> you'd have to create a new list. For example:
// In .NET 4, using the covarianc...
What is an optional value in Swift?
...String are completely different types.
Here's the most important thing to know: An optional is a kind of container. An optional String is a container which might contain a String. An optional Int is a container which might contain an Int. Think of an optional as a kind of parcel. Before you open it ...
Node.js: printing to console without a trailing newline?
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Genius. Didn't know you could do this.
– Joshua Pinter
Jun 29 at 22:29
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Why is MATLAB so fast in matrix multiplication?
...lementation of BLAS routines which were more and more efficient.
I don't know all the historical implementations (I was not born or a kid back then), but two of the most notable ones came out in the early 2000s: the Intel MKL and GotoBLAS. Your Matlab uses the Intel MKL, which is a very good, optim...
How do you clear the SQL Server transaction log?
...ame size again, not very much is accomplished by shrinking it temporarily. Now, depending on the recovery goals of your database, these are the actions you should take.
First, take a full backup
Never make any changes to your database without ensuring you can restore it should something go wrong.
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How to chain scope queries with OR instead of AND?
...ou would do
Person.where('name=? OR lastname=?', 'John', 'Smith')
Right now, there isn't any other OR support by the new AR3 syntax (that is without using some 3rd party gem).
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How many characters can UTF-8 encode?
...7,483,648 characters
However, RFC 3629 restricted the possible values, so now we're capped at 4 bytes, which gives us
221 = 2,097,152 characters
Note that a good chunk of those characters are "reserved" for custom use, which is actually pretty handy for icon-fonts.
* Wikipedia used show a table ...
How do I add a foreign key to an existing SQLite table?
...you will have to recreate all this tables too.
– rocknow
Sep 18 '14 at 1:16
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Tests not running in Test Explorer
...fine. All tests are running, all tests are showing the right test outcome. Now a coworker told me, that the tests are not running on his machine using the Visual Studio test explorer. They are not working either on my machine, so i can exclude some local missing files or something.
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