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Convert boolean result into number/integer
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Best answer. Why? This works on truthiness which is more general and accepts any type (string, number, etcetera.) The unary answer is clever indeed, but if I pass it a string it returns NaN. So if you want L33T and guarantee the input, go urary, otherwise methinks the ternary ...
Why is Scala's immutable Set not covariant in its type?
...ure, it's nice that it's a predicate, but you can usually just be a little more verbose and use "set.contains" rather than "set" (and arguably "set.contains" reads better in many cases anyway).
– Matt R
Mar 3 '11 at 20:32
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What is the fundamental difference between WebSockets and pure TCP?
...b sockets protocol (assuming the server is capable of doing so) to allow a more "TCP socket"-like communication stream.
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How do I call setattr() on the current module?
...scope, the latter is equivalent to:
vars()[name] = value
which is a bit more concise, but doesn't work from within a function (vars() gives the variables of the scope it's called at: the module's variables when called at global scope, and then it's OK to use it R/W, but the function's variables w...
Numpy matrix to array
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If you'd like something a bit more readable, you can do this:
A = np.squeeze(np.asarray(M))
Equivalently, you could also do: A = np.asarray(M).reshape(-1), but that's a bit less easy to read.
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Check whether or not the current thread is the main thread
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Jinja2 template variable if None Object set a default value
...e, but not for this question where you're looking to grab a field out of a more complex one. I would downvote this, since it's not a good answer to the original question... and yet at the same time, knowing about default is exactly what I needed for my particular case, so... simply not voting. (An...
Laravel Redirect Back with() Message
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Is it possible for a computer to “learn” a regular expression by user-provided examples?
... say: "the item codes are things like \d++-345[AB]"
When the item code is more permissive but we have not provided other examples, we have not proofs to understand the problem well.
When applying the human generated solution \d++-345[AB] to the following text, it fails:
"On the back of the item th...