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What is an OS kernel ? How does it differ from an operating system? [closed]

I am not able to understand the difference between a kernel and an operating system. I do not see any difference between them. Is the kernel an operating system? ...
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What's the cleanest way of applying map() to a dictionary in Swift?

I'd like to map a function on all keys in the dictionary. I was hoping something like the following would work, but filter cannot be applied to dictionary directly. What's the cleanest way of achieving this? ...
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Incrementing in C++ - When to use x++ or ++x?

...nd I've learned about the incrementation a while ago. I know that you can use "++x" to make the incrementation before and "x++" to do it after. ...
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How to view or edit localStorage

I created a Chrome extension and am using localStorage for storing data. 5 Answers 5 ...
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std::string formatting like sprintf

I have to format std::string with sprintf and send it into file stream. How can I do this? 40 Answers ...
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How can I disable logging while running unit tests in Python Django?

I am using a simple unit test based test runner to test my Django application. 15 Answers ...
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Get size of all tables in database

I have inherited a fairly large SQL Server database. It seems to take up more space than I would expect, given the data it contains. ...
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Any way to limit border length?

Is there any way to limit the length of a border. I have a <div> that has a bottom border, but I want to add a border on the left of the <div> that only stretches half of the way up. ...
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Numpy first occurrence of value greater than existing value

I have a 1D array in numpy and I want to find the position of the index where a value exceeds the value in numpy array. 7 A...
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Django import error - no module named django.conf.urls.defaults

I am trying to run statsd/graphite which uses django 1.6. 2 Answers 2 ...