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CSS :not(:last-child):after selector
...esome and modern way to deal with this. I was struggling with :last-child, then I found your answer. This one is perfect! :not(:last-of-type):after
– Firze
Oct 20 '16 at 10:44
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Do I need Content-Type: application/octet-stream for file download?
...attachment", even with "application/octet-stream" as the content-type. And then they print a message saying you may be under attack... There is just no way of it letting me save a file. You have to configure xdg-open even if you just want to save a file. I'm sick of this.
– div...
How does zip(*[iter(s)]*n) work in Python?
...eeps remaining available, so for zip once 0 is consumed 1 is available and then 2 and so on. A very subtle thing, but quite clever!!!
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LLVM vs clang on OS X
...and Clang, with llvm-gcc as the default compiler. Times have changed since then.
– Brian Campbell
Feb 24 '14 at 5:03
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Servlet for serving static content
...ode> when
* the resource does actually not exist. The servlet will then return a HTTP 404 error.
* @param request The involved HTTP servlet request.
* @return The static resource associated with the given HTTP servlet request.
* @throws IllegalArgumentException When the reques...
How can I use numpy.correlate to do autocorrelation?
...difference of 0. It starts at a negative time difference, closes to 0, and then goes positive. That is, you were expecting:
autocorrelation(a) = ∑ -∞ < i < ∞ aivt+i where 0 <= t < ∞
But what you got was:
autocorrelation(a) = ∑ -∞ < i < ∞ aivt+i where -∞ &...
How to expire session due to inactivity in Django?
...session on browser close with the SESSION_EXPIRE_AT_BROWSER_CLOSE setting. Then set a timestamp in the session on every request like so.
request.session['last_activity'] = datetime.now()
and add a middleware to detect if the session is expired. something like this should handle the whole process....
How to vertically center a container in Bootstrap?
... display type of it and the other child, the .container to inline-block.
Then use vertical-align: middle; to align the inline elements vertically.
Here you go:
<div class="jumbotron vertical-center">
<div class="container">
...
</div>
</div>
.vertical-center {
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How do you return the column names of a table?
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This seems a bit easier then the above suggestions because it uses the OBJECT_ID() function to locate the table's id. Any column with that id is part of the table.
SELECT *
FROM syscolumns
WHERE id=OBJECT_ID('YOUR_TABLE')
I commonly use a ...
Find value in an array
...ement that match the condition. So preferable use array.find{ |e| e == 3 } then array.select{ |e| e == 3 }.first
– Oscar Gonzalez
Nov 18 '19 at 0:15
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