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Regular expression for a hexadecimal number?
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11 Answers
11
Active
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A list of indices in MongoDB?
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145
From the shell:
db.test.getIndexes()
For shell help you should try:
help;
db.help();
db.te...
What does rake db:test:prepare actually do?
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119
The rake db:migrate above runs any pending migrations on the
development environment and ...
Why is my xlabel cut off in my matplotlib plot?
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Use:
import matplotlib.pyplot as plt
plt.gcf().subplots_adjust(bottom=0.15)
to make room for the label.
Edit:
Since i gave the answer, matplotlib has added the tight_layout() function.
So i suggest to use it:
plt.tight_layout()
should make room for the xlabel.
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Differences between numpy.random and random.random in Python
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122
You have made many correct observations already!
Unless you'd like to seed both of the random...
How can one see content of stack with GDB?
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116
info frame to show the stack frame info
To read the memory at given addresses you should take...
Connecting to TCP Socket from browser using javascript
...y straightforward, for example:
chrome.experimental.socket.create('tcp', '127.0.0.1', 8080, function(socketInfo) {
chrome.experimental.socket.connect(socketInfo.socketId, function (result) {
chrome.experimental.socket.write(socketInfo.socketId, "Hello, world!");
});
});
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In C++, what is a “namespace alias”?
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189
A namespace alias is a convenient way of referring to a long namespace name by a different, sh...
std::function vs template
Thanks to C++11 we received the std::function family of functor wrappers. Unfortunately, I keep hearing only bad things about these new additions. The most popular is that they are horribly slow. I tested it and they truly suck in comparison with templates.
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