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A monad is just a monoid in the category of endofunctors, what's the problem?
...o (Just x) = [x]
reverse' :: [] :-> []
reverse' = Natural reverse
Basically, in Haskell, natural transformations are functions from some type f x to another type g x such that the x type variable is "inaccessible" to the caller. So for example, sort :: Ord a => [a] -> [a] cannot be made i...
How do you rename a MongoDB database?
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So MongoDB should have one command that calls two functions, copy and drop? I don't see a big reason to have this single command. But it could be nice to some.
– TamusJRoyce
May 4 '17 at 14:10
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How can we run a test method with multiple parameters in MSTest?
NUnit has a feature called Values, like below:
9 Answers
9
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Turning live() into on() in jQuery
My application has dynamically added Dropdowns. The user can add as many as they need to.
5 Answers
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WebApi's {“message”:“an error has occurred”} on IIS7, not in IIS Express
...mErrors mode="Off"/></system.web> This pointed to a missing dynamically-loaded dependency. After adding this dependency and telling it to be copied locally, the server started working.
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Usage of EnsureSuccessStatusCode and handling of HttpRequestException it throws
...age and throws HttpRequestException , but I fail to see how to programmatically handle it any differently than a generic Exception . For example, it doesn't include the HttpStatusCode , which would have been handy.
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Parse RSS with jQuery
...o need for a whole plugin. This will return your RSS as a JSON object to a callback function:
function parseRSS(url, callback) {
$.ajax({
url: document.location.protocol + '//ajax.googleapis.com/ajax/services/feed/load?v=1.0&num=10&callback=?&q=' + encodeURIComponent(url),
dat...
Set attributes from dictionary in python
... key in kwargs:
setattr(self, key, kwargs[key])
Then you can call it like this:
e = Employee({"name": "abc", "age": 32})
or like this:
e = Employee(name="abc", age=32)
or even like this:
employee_template = {"role": "minion"}
e = Employee(employee_template, name="abc", age=32)
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Adding 'serial' to existing column in Postgres
... ^ ^
-- is_called
Setting the optional third parameter of setval to false will prevent the next nextval from advancing the sequence before returning a value, and thus:
the next nextval will return exactly the specified value, and sequ...
Is it possible to use getters/setters in interface definition?
...osed to hide these implementation details anyway as it is a promise to the calling code about what it can call.
interface IExample {
Name: string;
}
class Example implements IExample {
// this satisfies the interface just the same
public Name: string = "Bob";
}
var example = new Examp...