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How to get one value at a time from a generator function in Python?
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This is the correct way to do it.
You can also use next(gen).
http://docs.python.org/library/functions.html#next
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How to write a multidimensional array to a text file?
...) takes an optional parameter
newline='\n' to allow multi-line output.
https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.savetxt.html
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How to implement Enums in Ruby?
... is very similar (and more with features) to Java, C++ enums.
Quoted from http://edgeapi.rubyonrails.org/classes/ActiveRecord/Enum.html :
class Conversation < ActiveRecord::Base
enum status: [ :active, :archived ]
end
# conversation.update! status: 0
conversation.active!
conversation.active?...
Basic HTTP authentication with Node and Express 4
It looks like implementing basic HTTP authentication with Express v3 was trivial:
9 Answers
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Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
...en scaling. For a good example, see:
(source: springsource.com)
and: http://blog.springsource.org/2011/04/01/routing-topologies-for-performance-and-scalability-with-rabbitmq/
Finally, in regards to redis, yes, it can be used as a message broker, and can do well. However, Rabbitmq has more mes...
What is a good Hash Function?
...lly any kind of data - this one by Paul Hsieh is the best I've ever used.
http://www.azillionmonkeys.com/qed/hash.html
If you care about cryptographically secure or anything else more advanced, then YMMV. If you just want a kick ass general purpose hash function for a hash table lookup, then this...
How do I remove  from the beginning of a file?
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For me, this worked:
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
If I remove this meta, the  appears again. Hope this helps someone...
shar...
What does the exclamation mark mean in a Haskell declaration?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Convert base64 string to ArrayBuffer
...Goran.it's answer does not work because of unicode problem in javascript - https://developer.mozilla.org/en-US/docs/Web/API/WindowBase64/Base64_encoding_and_decoding.
I ended up using the function given on Daniel Guerrero's blog: http://blog.danguer.com/2011/10/24/base64-binary-decoding-in-javascr...
A simple explanation of Naive Bayes Classification
... & part two being the confusion surrounding Training set.
In general all of Machine Learning Algorithms need to be trained for supervised learning tasks like classification, prediction etc. or for unsupervised learning tasks like clustering.
During the training step, the algorithms are taught...