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When is memoization automatic in GHC Haskell?
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GHC does not memoize functions.
It does, however, compute any given expression in the code at most once per time that its surrounding lambda-expression is entered, or at most once ever if it is at top level. Determining where the lambda-expressions are can...
Java: difference between strong/soft/weak/phantom reference
I have read this article about the topic, but I don't really understand it.
Please give me some advice along with examples when describing the concepts.
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Why can't a 'continue' statement be inside a 'finally' block?
...un, like a return, for example, which brings the same problem.
In short, with the semantics of finally it doesn't make sense to allow transferring control from inside a finally block to the outside of it.
Supporting this with some alternative semantics would be more confusing than helpful, since t...
Run php script as daemon process
I need to run a php script as daemon process (wait for instructions and do stuff). cron job will not do it for me because actions need to be taken as soon as instruction arrives. I know PHP is not really the best option for daemon processes due to memory management issues, but due to various reasons...
gulp command not found - error after installing gulp
...his piece wasn't even included in our artifactory to grab, so couldn't get it to install it.
– vapcguy
Oct 6 '17 at 15:21
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TortoiseGit not showing icon overlays
I have been using TortoiseGit for almost a full year now. It has been working very well for me until yesterday, when I encountered a problem. I was deleting a folder when Windows Explorer sort of crashed on me (it hung on "discovering items") for over an hour, then I restarted the system.
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Using Core Data, iCloud and CloudKit for syncing and backup and how it works together
...nd backup data. The app will not store any files just data in a database. It is going to be iOS 8 and up so I am able to use CloudKit. I did some research and still not clear on how Core Data, iCloud and CloudKit work together.
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Undefined reference to static class member
... need to actually define the static member somewhere (after the class definition). Try this:
class Foo { /* ... */ };
const int Foo::MEMBER;
int main() { /* ... */ }
That should get rid of the undefined reference.
shar...
jQuery .live() vs .on() method for adding a click event after loading dynamic html
...handler on a parent object (that does not get loaded dynamically) and give it a selector that matches your dynamic object like this:
$('#parent').on("click", "#child", function() {});
The event handler will be attached to the #parent object and anytime a click event bubbles up to it that originat...
What is a “slug” in Django?
...read Django code I often see in models what is called a "slug". I am not quite sure what this is, but I do know it has something to do with URLs. How and when is this slug-thing supposed to be used?
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