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Is SecureRandom thread safe?
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ericksonerickson
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Can I change the root EBS device of my amazon EC2 instance?
...ev/sda1 indeed!
– Aseem Kishore
Aug 31 '12 at 13:47
6
Thanks, this is great. One gotcha is that t...
What is __main__.py?
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335
Often, a Python program is run by naming a .py file on the command line:
$ python my_program....
How to convert a negative number to positive?
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edited Oct 5 '10 at 23:28
answered Oct 4 '10 at 10:26
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textarea's rows, and cols attribute in CSS
...xtareas</title>
<style>
.comments { width: 300px; height: 75px }
</style>
</head>
<body>
<textarea class="comments"></textarea>
</body>
</html>
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MongoDB: update every document on one field
... document. In the Mongo shell, or with any MongoDB client:
$version >= 3.2:
db.foo.updateMany( {}, <update> )
{} is the condition (the empty condition matches any document)
3.2 > $version >= 2.2:
db.foo.update( {}, <update>, { multi: true } )
{} is the condition (the ...
Is there YAML syntax for sharing part of a list or map?
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53
The merge key type is probably what you want. It uses a special << mapping key to indicate...
What is the fundamental difference between WebSockets and pure TCP?
...ally they will have only a few standard ones such as port 80 for HTTP or 443 for HTTPS. So, to communicate with the server you are obliged to connect using one of those ports.
Given that these are standard ports for web servers that generally speak HTTP, you're therefore obliged to conform to the H...
How to create function that returns nothing
... write a function with pl/pgsql .
I'm using PostgresEnterprise Manager v3 and using shell to make a function, but in the shell I must define return type. If I don't define the return type, I'm not able to create a function.
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