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Why doesn't Haskell's Prelude.read return a Maybe?
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This function (called readMaybe) is now in the Haskell prelude! (As of the current base -- 4.6)
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Should I pass a shared_ptr by reference? [duplicate]
...per with value semantics via RSF w = std::ref(p);. So much for the setup.
Now, everybody knows that containers of pointers are minefield. So std::vector<Foo*> will be a nightmare to maintain, and any number of bugs arise from improper lifetime management. What's worse conceptually is that it ...
How to get Vim to highlight non-ascii characters?
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For other (from now on less unlucky) folks ending up here via a search engine and can't accomplish highlighting of non-ASCII characters, try this (put this into your .vimrc):
highlight nonascii guibg=Red ctermbg=1 term=standout
au BufReadPo...
How do I specify multiple targets in my podfile for my Xcode project?
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CocoaPods 1.0 has changed the syntax for this. It now looks like this:
def shared_pods
pod 'SSKeychain', '~> 0.1.4'
pod 'INAppStoreWindow', :head
pod 'AFNetworking', '1.1.0'
pod 'Reachability', '~> 3.1.0'
pod 'KSADNTwitterFormatter', '~> 0.1.0'...
What is the fastest way to get the value of π?
...ll depends on what kind of accuracy you are looking for. The fastest π I know of is the one with the digits hard coded. Looking at Pi and Pi[PDF], there are a lot of formulae.
Here is a method that converges quickly — about 14 digits per iteration. PiFast, the current fastest application, uses t...
jQuery’s .bind() vs. .on()
... mouseup: function() {
},
mousedown: function() {
}
});
You know right away it's delegated because, well, it says delegate. You also instantly see the selector.
With .on it's not immediately clear if it's even delegated and you have to look at the end for the selector:
$(elem).on({
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Can I find out the return value before returning while debugging in Intellij?
...ere is a much better way. See answer from Birchlabs for details. It should now be the accepted answer.
– Mikezx6r
Nov 4 '19 at 13:15
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Symfony2 : How to get form validation errors after binding the request to the form
...tMessage();
}
return $errors;
}
as the Form::getErrors() method now returns an instance of FormErrorIterator, unless you switch the second argument ($flatten) to true. (It will then return a FormError instance, and you will have to call the getMessage() method directly, without the curren...
VS2012 return to a normal TFS checkin window?
... seems to remove the popup window for TFS check-ins that was in VS2010. It now seems to take over the team explorer tab in my sidebar, and buries the important things - like which files I've changed. Is there any way to return to a normal popup window for check-ins in VS2012?
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How to share my Docker-Image without using the Docker-Hub?
...e reference, the link to the docker registry image is outdated. You should now use Docker Registry 2.0 and the code on github/docker/distribution
– RoelAdriaans
Jun 6 '15 at 17:31
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