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When is each sorting algorithm used? [closed]
What are the use cases when a particular sorting algorithm is preferred over others - merge sort vs QuickSort vs heapsort vs 'intro sort', etc?
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How to request Administrator access inside a batch file
I am trying to write a batch file for my users to run from their Vista machines with UAC. The file is re-writing their hosts file, so it needs to be run with Administrator permissions. I need to be able to send them an email with a link to the .bat file. The desired behavior is that when they rig...
HTTP vs HTTPS performance
... recall reading that HTTPS can be a fifth as fast as HTTP. Is this valid with the current generation webservers/browsers? If so, are there any whitepapers to support it?
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Accessing localhost:port from Android emulator
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You can access your host machine with the IP address "10.0.2.2".
This has been designed in this way by the Android team. So your webserver can perfectly run at localhost and from your Android app you can access it via "http://10.0.2.2:<hostport>".
If...
setting an environment variable in virtualenv
I have a Heroku project that uses environment variables to get its configuration, but I use virtualenv to test my app locally first.
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Keep overflow div scrolled to bottom unless user scrolls up
I have a div that is only 300 pixels big and I want it to when the page loads scroll to the bottom of the content. This div has content dynamically added to it and needs to stay scrolled all the way down. Now if the user decides to scroll up I don't want it to jump back to the bottom until the user ...
Automating “enter” keypresses for bash script generating ssh keys
...o create script, which simply runs ssh-keygen -t rsa . But how to pass to it 3 times enter?
5 Answers
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How to select bottom most rows?
...>Z order, but select the top 200 in Z->A order this is one way to do it. The other answers, suggesting just changing the ORDER BY will not return the same results described in the question, as they will be out of order (unless order doesn't matter, which the OP did not say).
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How do I pass JavaScript variables to PHP?
...code to the current page PHP code... PHP code runs at the server side, and it doesn't know anything about what is going on on the client side.
You need to pass variables to PHP code from the HTML form using another mechanism, such as submitting the form using the GET or POST methods.
<DOCTYPE h...
node and Error: EMFILE, too many open files
...is process.
(e.g. graceful-fs isn't gonna fix your wagon if your issue is with sockets.)
From My Blog Article: http://www.blakerobertson.com/devlog/2014/1/11/how-to-determine-whats-causing-error-connect-emfile-nodejs.html
How To Isolate
This command will output the number of open handles for nodejs ...