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How to clone a case class instance and change just one field in Scala?
...ed on current value.
val newPersona2 = messageLens.modify(existingPersona)(_ + "iPad")
// Results:
// newPersona1: Persona(store,apple,Set())
// newPersona2: Persona(store,apple,Set(iPhone, iPad))
Moreover, in case you have nested case classes, the getter and setter methods can be a bit tedious t...
Set folder browser dialog start location
...nswered May 10 '09 at 0:39
great_llamagreat_llama
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Gradle, “sourceCompatibility” vs “targetCompatibility”?
...
if(JavaVersion.current() != JavaVersion.VERSION_1_8) throw new GradleException("This project requires Java 8, but it's running on "+JavaVersion.current()) This is how I sort this issue out, right in the beginning of the build.gradle file.
– Xerus
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How do I copy a version of a single file from one git branch to another?
...er branch> <path to file> works well.
– Randall
Mar 11 '16 at 20:10
2
@Gonen: As of git ...
What is “thread local storage” in Python, and why do I need it?
In Python specifically, how do variables get shared between threads?
5 Answers
5
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Authorize Attribute with Multiple Roles
...ttpContext.Current.User.Identity as ClaimsIdentity;
string _role = claimsIdentity.FindFirst(ClaimTypes.Role).Value;
bool isAuthorize = Roles.Any(role => role == _role);
if(!isAuthorize)
HandleUnauthorizedRequest(actionContext);
...
MongoDB aggregation framework match OR
...n' }] }
Like so, since the $match operator just takes what you would normally put into the find() function
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How to drive C#, C++ or Java compiler to compute 1+2+3+…+1000 at compile time?
In a recent interview, I was asked a really strange question. The interviewer asked me how can I compute 1+2+3+...+1000 just using compiler features. This means that I am not allowed to write a program and execute it, but I should just write a program that could drive the compiler to compute this su...
How to display Base64 images in HTML?
...es - its a data URI for a red dot image (source: en.wikipedia.org/wiki/Data_URI_scheme). I am just pointing out that there is no apparent issue in what you are doing except perhaps actual base64 data. Use the given decoder and save decoded binary data as an jpeg file and try to open it. If it does n...
How can one close HTML tags in Vim quickly?
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I have installed this. It doesn't completed close tag automatically.What is the shortkey? I try Ctrl-_, but this make small font of my terminal.
– alhelal
Apr 3 '18 at 1:25
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