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“You have mail” message in terminal, os X [closed]
...pon a mail arrival (which is still unread) can trigger You have mail every time you open a new tab in Terminal (which happened to me once). To solve this problem, the file is needed to be removed (ie. sudo rm /var/mail/<your-username>).
– Muntashir Akon
O...
Capturing Groups From a Grep RegEx
...that in this case, I show an example of concatenating a string at the same time that the substring is captured.
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Is Java Regex Thread Safe?
...tform by any compatible VM, you can't be sure those fixes exist in that runtime. Of course most of the time you know which version the server is running, but it's tedious to check every single version.
– TWiStErRob
Sep 3 '16 at 21:03
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What is a loop invariant?
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This is an excellent example. Many times when I've heard an instructor describe the loop invariant, it has simply been 'the loop condition', or something similar. Your example shows that the invariant can be much more.
– Brian S
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How to automatically remove trailing whitespace in Visual Studio 2008?
... How to bind it to the File On Save event so it's executed every time I save a file, please?
– David Ferenczy Rogožan
Mar 2 at 10:38
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Sort hash by key, return hash in Ruby
...0_000
Benchmark.bm do |b|
GC.start
b.report("hash sort") do
many.times do
Hash[h.sort]
end
end
GC.start
b.report("keys sort") do
many.times do
nh = {}
h.keys.sort.each do |k|
nh[k] = h[k]
end
end
end
end
user system tot...
What are the reasons why Map.get(Object key) is not (fully) generic
...fe” is a strong claim for a construct which can fail unpredictably at runtime. Don’t narrow your view to hash maps which happen to work with that. TreeMap may fail when you pass objects of the wrong type to the get method but may pass occasionally, e.g. when the map happens to be empty. And even...
jQuery Popup Bubble/Tooltip [closed]
...). Hopefully not seen as negative -- just trying to save someone else some time. Definitely worth considering but there are some downsides.
– Cymen
Sep 16 '10 at 20:37
4
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How do I prevent a parent's onclick event from firing when a child anchor is clicked?
...eveloper.mozilla.org/en-US/docs/Web/API/Window/event. If you can spare the time I would appreciate it if you can comment why you did use window.event ( maybe it is an issue that existed in 2015 or I failed to understand the reason ).
– Rob Monhemius
May 3 '19 a...
Where should signal handlers live in a django project?
... While I understand what they are and how to use them. I am having a hard time figuring out where I should put them. The documentation from the django site has this to say:
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