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What is the exact meaning of IFS=$'\n'?
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Normally bash doesn't interpret escape sequences in string literals. So if you write \n or "\n" or '\n', that's not a linebreak - it's the letter n (in the first case) or a backslash followed by the letter n (in the other two cases).
$'so...
Is C++ context-free or context-sensitive?
...e computation could be performed by a linear-bounded Turing machine, so it does not quite prove Turing equivalence, but the important part is that the parser needs to perform the computation in order to perform syntactic analysis. It could have been any computation expressible as a template instanti...
querySelector, wildcard element match?
Is there a way to do a wildcard element name match using querySelector or querySelectorAll ? I see support for wildcards in attribute queries but not for the elements themselves.
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How to prepare a Unity project for git? [duplicate]
...o prepare a Unity project for committing to a git repository eg. github? I don't want to store unnecessary files (specially temp files and avoid binary formats as much as possible).
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Using numpad in Vi (Vim) via PuTTY
The numberpad does not work properly when using Vim through PuTTY. Instead of numbers I get
5 Answers
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Understand convertRect:toView:, convertRect:FromView:, convertPoint:toView: and convertPoint:fromVie
...point at 20,30 in the superview. This conversion is what those methods are doing.
Your example above is pointless (no pun intended) since it converts a point from a view to itself, so nothing will happen. You would more commonly find out where some point of a view was in relation to its superview ...
Find unique rows in numpy.array
...selection of unique values in any N-dim array. To get unique rows, one can do:
unique_rows = np.unique(original_array, axis=0)
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What is the difference between Θ(n) and O(n)?
...t just laziness of typing because nobody knows how to type this symbol, or does it mean something different?
9 Answers
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When does Java's Thread.sleep throw InterruptedException?
When does Java's Thread.sleep throw InterruptedException? Is it safe to ignore it? I am not doing any multithreading. I just want to wait for a few seconds before retrying some operation.
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What is Data URI support like in major email client software?
...to embed images and other binary data in HTML, and browser support is well documented on the web. (IE8 was the first version of IE to support Data URI, with a max 32 KB size per URI; other major browsers have supported it even longer.)
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