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How do I use itertools.groupby()?
I haven't been able to find an understandable explanation of how to actually use Python's itertools.groupby() function. What I'm trying to do is this:
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Has anyone used Coffeescript for a production application? [closed]
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We've started to use CoffeeScript in our product - a non-public facing website which is basically an app for browsing certain kinds of data.
We use CoffeeScript as a command-line compiler (not on the server, which we'd eventually like to do).
PROS (for us):
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Can someone give an example of cosine similarity, in a very simple, graphical way?
Cosine Similarity article on Wikipedia
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How to find the lowest common ancestor of two nodes in any binary tree?
The Binary Tree here is may not necessarily be a Binary Search Tree.
The structure could be taken as -
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Can't import my own modules in Python
I'm having a hard time understanding how module importing works in Python (I've never done it in any other language before either).
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var functionName = function() {} vs function functionName() {}
I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent.
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Just what is an IntPtr exactly?
Through using IntelliSense and looking at other people's code, I have come across this IntPtr type; every time it has needed to be used I have simply put null or IntPtr.Zero and found most functions to work. What exactly is it and when/why is it used?
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Why is there no tuple comprehension in Python?
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You can use a generator expression:
tuple(i for i in (1, 2, 3))
but parentheses were already taken for … generator expressions.
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What's the difference between passing by reference vs. passing by value?
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First and foremost, the "pass by value vs. pass by reference" distinction as defined in the CS theory is now obsolete because the technique originally defined as "pass by reference" has since fallen out of favor and is seldom used now.1
Newer languages2 tend to use a different (but similar...
Using ThreadPool.QueueUserWorkItem in ASP.NET in a high traffic scenario
I've always been under the impression that using the ThreadPool for (let's say non-critical) short-lived background tasks was considered best practice, even in ASP.NET, but then I came across this article that seems to suggest otherwise - the argument being that you should leave the ThreadPool to ...