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Generate list of all possible permutations of a string
..., Python example:
def nextPermutation(perm):
k0 = None
for i in range(len(perm)-1):
if perm[i]<perm[i+1]:
k0=i
if k0 == None:
return None
l0 = k0+1
for i in range(k0+1, len(perm)):
if perm[k0] < perm[i]:
l0 = i
perm[k...
Example use of “continue” statement in Python?
...
import random
for i in range(20):
x = random.randint(-5,5)
if x == 0: continue
print 1/x
continue is an extremely important control statement. The above code indicates a typical application, where the result of a division by z...
Order of serialized fields using JSON.NET
... want to alphabetize JSON properties, it's a whole lot easier to work with raw JSON files, particularly for classes with lots of properties, if they are ordered.
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How to change tab size on GitHub?
... that the value can be anything from 1 to 12. It does not work on Gists or raw file views though.
Source: GitHub Cheat Sheet
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how to detect search engine bots with php?
...ser agent with fake name and name it like "Googlebot"? I think checking ip range is more trustworthy!
– Mojtaba Rezaeian
Jul 1 '15 at 6:39
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Ruby Gem install Json fails on Mavericks and Xcode 5.1 - unknown argument: '-multiply_definedsuppres
...liner to fix that
curl https://gist.githubusercontent.com/Paulche/9713531/raw/1e57fbb440d36ca5607d1739cc6151f373b234b6/gistfile1.txt | sudo patch /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/universal-darwin13/rbconfig.rb
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How to split a string into a list?
... also use it to solve your problem:
import nltk
words = nltk.word_tokenize(raw_sentence)
This has the added benefit of splitting out punctuation.
Example:
>>> import nltk
>>> s = "The fox's foot grazed the sleeping dog, waking it."
>>> words = nltk.word_tokenize(s)
>&g...
How can I avoid running ActiveRecord callbacks?
... it without resorting to additional gems, adding conditional checks, using RAW SQL, or futzing with your exiting code in any way, consider using a "shadow object" pointing to your existing db table. Like so:
class ImportedPerson < ActiveRecord::Base
self.table_name = 'people'
end
This works ...
Can you grab or delete between parentheses in vi/vim?
... | |
\_______\___---> Cursor range
assuming that your cursor is inside the above mentioned cursor range, you can issue the following commands :
di( --> Deletes '5.0/9.0'
ci( --> Substitutes '5.0/9.0'
yi( --> Yanks '5.0/9.0'
Deleting ...
Get Character value from KeyCode in JavaScript… then trim
... That doesn't work with other locales which are outside of the ASCII range (such as latin-1 for instance, german, french, italian and spanish if you must know). Also fails for non printable keys, obviously.
– Florian Bösch
Jan 29 '13 at 12:41
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