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How do you concatenate Lists in C#?
...rguments are invalid, you don't have a using statement for System.Linq, or one of them is not an IEnumerable<T>
– Jonathan Rupp
Jun 11 '15 at 17:28
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Using isKindOfClass with Swift
...ew constant, then the if let ... as? ... syntax is your boy, as Kevin mentioned. But if you don't need the value and only need to check the type, then you should use the is operator.
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improv...
Why C# fails to compare two object types with each other but VB doesn't?
...d improves performance, its use is strongly recommended.
2) Jon has mentioned one exception, strings, where equality comparison does some more things for reasons of backwards compatibility.
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Add .gitignore to gitignore
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The .gitignore file's purpose is to prevent everyone who collaborates on a project from accidentally commiting some common files in a project, such as generated cache files. Therefore you should not ignore .gitignore, since it's supposed to be included in the repository.
I...
How to implement a rule engine?
...ring, string> {
{ "greater_than", "GreaterThan" },
{ "hasAtLeastOne", "Contains" }
};
The code uses the type User for simplicity. You can replace User with a generic type T to have a generic Rule compiler for any types of objects. Also, the code should handle errors, like unknown operato...
Map enum in JPA with fixed values?
...azy to think that developers might want to persist an enum as the value of one of its fields/properties instead of its int value or name? Both of those are extremely "fragile" and refactoring-unfriendly. And using the name also assumes you are using the same naming convention in both Java and the ...
What is the difference between OpenID and SAML?
...ept.
With OpenID you accept identities coming from arbitrary servers. Someone claims to be http://someopenid.provider.com/john.smith. How you are going to match this with a user in your database? Somehow, for example by storing this information with a new account and recognizing this when user visi...
Best practice for Python assert
...ajkHermecz: Actually, if you reread the question, this is two questions in one. People only looking at the title are only familiar with the first question, which this answer doesn't answer. This answer actually contains an answer to the second question.
– ArtOfWarfare
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How to return multiple values? [duplicate]
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I would add one more point to this - keep your returned object immutable (best initialize it in a constructor and keep your fields final)
– Kris
Dec 19 '11 at 13:35
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Clearing intent
... Didn't work for me. I was facing the same issue as @tato.rodrigo mentioned where intent wasn't getting cleared if the activity is opened through notification or from history or other reasons he mentioned, so what I did after consuming the intent information was to reset the intent like this set...