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What is the difference between NaN and None?
...ut[13]: dtype('O')
In [14]: s_good.dtype
Out[14]: dtype('float64')
Jeff comments (below) on this:
np.nan allows for vectorized operations; its a float value, while None, by definition, forces object type, which basically disables all efficiency in numpy.
So repeat 3 times fast: ob...
What is the difference between trie and radix trie data structures?
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A radix tree is a compressed version of a trie. In a trie, on each edge you write a single letter, while in a PATRICIA tree (or radix tree) you store whole words.
Now, assume you have the words hello, hat and have. To store them in a trie, it...
What is the difference between Gemfile and Gemfile.lock in Ruby on Rails
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Differences between Agda and Idris
...igh level features such as type classes, do notation, idiom brackets, list comprehensions, overloading and so on. Idris puts high level programming ahead of interactive proof, although because Idris is built on a tactic-based elaborator, there is an interface to a tactic based interactive theorem pr...
How do I convert a String to an int in Java?
...Alternatively, you can use an Ints method from the Guava library, which in combination with Java 8's Optional, makes for a powerful and concise way to convert a string into an int:
import com.google.common.primitives.Ints;
int foo = Optional.ofNullable(myString)
.map(Ints::tryParse)
.orElse(0)
...
Remove all special characters with RegExp
...sired = stringToReplace.replace(/[^\w\s]/gi, '')
As was mentioned in the comments it's easier to do this as a whitelist - replace the characters which aren't in your safelist.
The caret (^) character is the negation of the set [...], gi say global and case-insensitive (the latter is a bit redund...
Why is not in HTML 5 Tag list while is?
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Python Logging (function name, file name, line number) using a single file
...rying to learn how an application works. And for this I am inserting debug commands as the first line of each function's body with the goal of logging the function's name as well as the line number (within the code) where I send a message to the log output. Finally, since this application comprises ...
How to create an HTTPS server in Node.js?
...xample.
https://web.archive.org/web/20120203022122/http://www.silassewell.com/blog/2010/06/03/node-js-https-ssl-server-example/
This works for node v0.1.94 - v0.3.1. server.setSecure() is removed in newer versions of node.
Directly from that source:
const crypto = require('crypto'),
fs = requ...
With CSS, use “…” for overflowed block of multi-lines
...t handle multiple lines of text. Following works:
http://pvdspek.github.com/jquery.autoellipsis/
http://dotdotdot.frebsite.nl/
http://keith-wood.name/more.html
http://github.com/tbasse/jquery-truncate
There also some preformance tests.
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