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Can Go compiler be installed on Windows?
...n looking on golang.org for a Windows compiler, but I can't seem to find it. I can only see Linux and OS X compilers. Does anyone know if Go programming can be done on Windows, or is it something that Google hasn't implemented yet?
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Pushing read-only GUI properties back into ViewModel
I want to write a ViewModel that always knows the current state of some read-only dependency properties from the View.
6 An...
What's the difference between session.persist() and session.save() in Hibernate?
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From this forum post
persist() is well defined. It makes a
transient instance persistent.
However, it doesn't guarantee that the
identifier value will be assigned to
the persistent instance immediately,
the assignment might happen at flush
time. The spec doesn'...
How to avoid installing “Unlimited Strength” JCE policy files when deploying an application?
I have an app that uses 256-bit AES encryption which is not supported by Java out of the box. I know to get this to function correctly I install the JCE unlimited strength jars in the security folder. This is fine for me being the developer, I can install them.
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“Invalid form control” only in Google Chrome
...below works well in Safari but in Chrome and Firefox the form will not submit. Chrome console logs the error An invalid form control with name='' is not focusable . Any ideas?
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How do you represent a graph in Haskell?
It's easy enough to represent a tree or list in haskell using algebraic data types. But how would you go about typographically representing a graph? It seems that you need to have pointers. I'm guessing you could have something like
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Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC?
... (sharedInstance == nil) {
sharedInstance = [[MyClass alloc] init];
}
}
return sharedInstance;
}
The benefit of dispatch_once() over this is that it's faster. It's also semantically cleaner, because it also protects you from multiple threads doing alloc init of your sha...
Multiline strings in JSON
I'm writing some data files in JSON format and would like to have some really long string values split over multiple lines. Using python's JSON module I get a whole lot of errors, whether I use \ or \n as an escape.
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How to find the sum of an array of numbers
Given an array [1, 2, 3, 4] , how can I find the sum of its elements? (In this case, the sum would be 10 .)
43 Answers
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Dynamically adding a form to a Django formset with Ajax
... a Django formset using Ajax, so that when the user clicks an "add" button it runs JavaScript that adds a new form (which is part of the formset) to the page.
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