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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
I'm having a little trouble understanding the pass-by-reference properties of data.table . Some operations seem to 'break' the reference, and I'd like to understand exactly what's happening.
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How to get Enum Value from index in Java?
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Why is Python 3.x's super() magic?
In Python 3.x, super() can be called without arguments:
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Why does String.valueOf(null) throw a NullPointerException?
according to the documentation, the method String.valueOf(Object obj) returns:
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Is it OK to leave a channel open?
Is it OK to leave a Go channel open forever (never close the channel) if I never check for its state? Will it lead to memory leaks? Is the following code OK?
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Routing: The current request for action […] is ambiguous between the following action methods
I have a View called Browse.chtml , where the user can enter a search term, or leave the search term blank. When entering the search term, I want to direct the page to http://localhost:62019/Gallery/Browse/{Searchterm} and when nothing is entered, I want to direct the browser to http://localho...
Python “raise from” usage
What's the difference between raise and raise from in Python?
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Citing the author of a blockquote using Markdown syntax
I am using the Symfony CMS and it uses Markdown for article writing. I need to do a blockquote of a quote from Benjamin Franklin and would like to have the quote followed by a citation beneath it, but right now all it does is blockquote the whole line. How does one do this in markdown syntax?
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Do regular expressions from the re module support word boundaries (\b)?
...arn a little more about regular expressions, a tutorial suggested that you can use the \b to match a word boundary. However, the following snippet in the Python interpreter does not work as expected:
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