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C# HttpClient 4.5 multipart/form-data upload

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How to randomly select an item from a list?

... If you want to randomly select more than one item from a list, or select an item from a set, I'd recommend using random.sample instead. import random group_of_items = {1, 2, 3, 4} # a sequence or set will work here. num_to_select = 2 ...
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How to redirect to a 404 in Rails?

...oller::RoutingError) do get '/something/you/want/to/404' end OR refer more info from Rails render 404 not found from a controller action share | improve this answer | fo...
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Is volatile expensive?

...rence it executes roughly the same throughput for reads/writes but also is more obvious that the field will be accessed and modified by multiple threads. Edit to answer OP's edit: Cache coherence is a bit of a complicated protocol, but in short: CPU's will share a common cache line that is attache...
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How to enable C++11/C++0x support in Eclipse CDT?

...erg's reply below, but I note it here as well, to make the accepted answer more complete. – Inusable Lumière Nov 27 '13 at 15:45 ...
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What is the role of the bias in neural networks? [closed]

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What are the use(s) for tags in Go?

... Excellent answer. Way more useful info in here than in the one with ten times this karma. – Darth Egregious Jul 1 '15 at 13:53 ...
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Show or hide element in React

...ed reviewing. I went with the intended answer and that was neat and 'felt' more react like. However I was unable to set initial states and anything useful on an unmounted component. I am looking at using css to hide things instead. Listeners on unmounted components will silently fail this has caused...
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Separate Back Stack for each tab in Android using Fragments

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Difference between SelectedItem, SelectedValue and SelectedValuePath

... Glad you're enjoying the book :). Since you've got the book, you'll find more information on this topic on pages 69-70, and page 204. – Chris Anderson Feb 4 '11 at 20:59 9 ...