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Run two async tasks in parallel and collect results in .NET 4.5

... You should use Task.Delay instead of Sleep for async programming and then use Task.WhenAll to combine the task results. The tasks would run in parallel. public class Program { static void Main(string[] args) { Go(); } public static void Go()...
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Why would an Enum implement an Interface?

...e.g. colours). They can represent more complex objects with functionality, and so you're then likely to want to add further functionality to these - e.g. you may have interfaces such as Printable, Reportable etc. and components that support these. ...
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Android List View Drag and Drop sort

...ords in a listview that I want the user to be able to re-sort using a drag and drop method. I have seen this implemented in other apps, but I have not found a tutorial for it. It must be something that others need as well. Can anyone point me to some code for doing this? ...
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How do I do a Date comparison in Javascript? [duplicate]

...ill be "invalid". Any comparison with another date will return false. When converted to a string it will become "Invalid Date". Its getTime() function will return NaN, and calling isNaN() on the date itself will return true; that's the easy way to check if a string is a valid date. ...
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How to make lists contain only distinct element in Python? [duplicate]

... The simplest is to convert to a set then back to a list: my_list = list(set(my_list)) One disadvantage with this is that it won't preserve the order. You may also want to consider if a set would be a better data structure to use in the first...
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Why doesn't RecyclerView have onItemClickListener()?

I was exploring RecyclerView and I was surprised to see that RecyclerView does not have onItemClickListener() . 32 Ans...
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Get data from fs.readFile

... if (Buffer.isBuffer( data){ result = data.toString('utf8'); } Now we have converted the buffer into readable text. This is good for reading a plaintext file or testing the file against format types. I could do a try/catch to see if it's a JSON file for example; but only after buffer is converted to...
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Sorting a vector of custom objects

...ting a vector containing custom (i.e. user defined) objects. Probably, standard STL algorithm sort along with a predicate (a function or a function object) which would operate on one of the fields (as a key for sorting) in the custom object should be used. Am I on the right track? ...
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Get Image size WITHOUT loading image into memory

I understand that you can get the image size using PIL in the following fashion 6 Answers ...
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How to find out element position in slice?

...lang, that it is designed very well to increase programmer's productivity. And go programs looks as nice as python ones :) So why there is no a common way to do such a common task? I mean, if you want to check if container has an element you can just if element in collection: do_something() ...