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Interview questions: WPF Developer [closed]
... a graphical design tool. Mid-level developers should be able to knock up form / graphic prototypes using a tool like XAMLPad.
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How to retrieve a single file from a specific revision in Git?
I have a Git repository and I'd like to see how some files looked a few months ago. I found the revision at that date; it's 27cf8e84bb88e24ae4b4b3df2b77aab91a3735d8 . I need to see what one file looks like, and also save it as a ("new") file.
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How to parse a JSON string to an array using Jackson
...I finally got it:
ObjectMapper objectMapper = new ObjectMapper();
TypeFactory typeFactory = objectMapper.getTypeFactory();
List<SomeClass> someClassList = objectMapper.readValue(jsonString, typeFactory.constructCollectionType(List.class, SomeClass.class));
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Instantiating object of type parameter
...bout T is that it is some subclass of Object. You need to specify some factory to create instances of T.
One approach could use a Supplier<T>:
class MyClass<T> {
private final Supplier<? extends T> ctor;
private T field;
MyClass(Supplier<? extends T> ctor) {
th...
How do Google+ +1 widgets break out of their iframe?
... JavaScript widget is running within the context of your website and therefore is not constrained by the Origin Inheritance Rules for iframes. Therefore this JavaScript widget can set whatever DOM events it wants on the parent site even though it appears to be just a simple iframe.
Another thing,...
What's the function like sum() but for multiplication? product()?
...added to the math module. See: math.prod().
Older info: Python 3.7 and prior
The function you're looking for would be called prod() or product() but Python doesn't have that function. So, you need to write your own (which is easy).
Pronouncement on prod()
Yes, that's right. Guido rejected the ide...
Android - SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
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I have run into the same error entries in LogCat. In my case it's caused by the 3rd party keyboard I am using. When I change it back to Android keyboard, the error entry does not show up any more.
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Are memory leaks ever ok? [closed]
Is it ever acceptable to have a memory leak in your C or C++ application?
50 Answers
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Index all *except* one item in python
Is there a simple way to index all elements of a list (or array, or whatever) except for a particular index? E.g.,
9 An...
Inject errors into already validated form?
After my form.Form validates the user input values I pass them to a separate (external) process for further processing. This external process can potentially find further errors in the values.
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