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Constructors in Go
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There are actually two accepted best practices:
Make the zero value of your struct a sensible default. (While this looks strange to most people coming from "traditional" oop it often works and is really convenient).
Provide a function fu...
Why does this C++ snippet compile (non-void function does not return a value) [duplicate]
...means that the compiler is not obligated provide an error nor a warning usually because it can be difficult to diagnose in all cases. We can see this from the definition of undefined behavior in the draft standard in section 1.3.24 which says:
[...]Permissible undefined behavior ranges from igno...
How to escape JSON string?
...r deserializing - rater it is used when you want to create a JSON text manually and you have a C# string and need to gets its proper representation as a text.
– Dror Harari
Dec 30 '14 at 22:50
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How to get string objects instead of Unicode from JSON?
...unicode strings, then recurses through the entire decoded value to convert all strings to byte strings. This has a couple of undesirable effects:
A copy of the entire decoded structure gets created in memory
If your JSON object is really deeply nested (500 levels or more) then you'll hit Python's ...
How to get current foreground activity context in android?
...n of document-centric recents means it can leak person information to the caller. For backwards compatibility, it will still return a small subset of its data: at least the caller's own tasks, and possibly some other tasks such as home that are known to not be sensitive.
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Foreign Key to multiple tables
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You have a few options, all varying in "correctness" and ease of use. As always, the right design depends on your needs.
You could simply create two columns in Ticket, OwnedByUserId and OwnedByGroupId, and have nullable Foreign Keys to each table....
Assigning default value while creating migration file
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typeoneerror
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answered May 29 '11 at 14:01
tarotaro
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How do I set a cookie on HttpClient's HttpRequestMessage
...instantiated once and re-used throughout the life of an application. Especially in server applications, creating a new HttpClient instance for every request will exhaust the number of sockets available under heavy loads..." From here: asp.net/web-api/overview/advanced/…
– Ser...
MongoDB Many-to-Many Association
... user document:
{name:"Joe"
,roles:["Admin","User","Engineer"]
}
To get all the Engineers, use:
db.things.find( { roles : "Engineer" } );
If you want to maintain the roles in separate documents then you can include the document's _id in the roles array instead of the name:
{name:"Joe"
,roles:...
What are Flask Blueprints, exactly?
...he string mold in Blueprint("mold", __name__)
– Codevalley
Aug 7 '17 at 6:48
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