Using Python's built-in defaultdict we can easily define a tree data structure:
def tree(): return defaultdict(tree)
That's it!
#301 Redirects for .htaccess | |
#Redirect a single page: | |
Redirect 301 /pagename.php http://www.domain.com/pagename.html | |
#Redirect an entire site: | |
Redirect 301 / http://www.domain.com/ | |
#Redirect an entire site to a sub folder | |
Redirect 301 / http://www.domain.com/subfolder/ |
Using Python's built-in defaultdict we can easily define a tree data structure:
def tree(): return defaultdict(tree)
That's it!
(by @andrestaltz)
So you're curious in learning this new thing called Reactive Programming, particularly its variant comprising of Rx, Bacon.js, RAC, and others.
Learning it is hard, even harder by the lack of good material. When I started, I tried looking for tutorials. I found only a handful of practical guides, but they just scratched the surface and never tackled the challenge of building the whole architecture around it. Library documentations often don't help when you're trying to understand some function. I mean, honestly, look at this:
Rx.Observable.prototype.flatMapLatest(selector, [thisArg])
Projects each element of an observable sequence into a new sequence of observable sequences by incorporating the element's index and then transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.
# You don't need Fog in Ruby or some other library to upload to S3 -- shell works perfectly fine | |
# This is how I upload my new Sol Trader builds (http://soltrader.net) | |
# Based on a modified script from here: http://tmont.com/blargh/2014/1/uploading-to-s3-in-bash | |
S3KEY="my aws key" | |
S3SECRET="my aws secret" # pass these in | |
function putS3 | |
{ | |
path=$1 |
Add //usr/bin/env go run $0 $@; exit
to go file to run like a shell script
$ cat a.go
//usr/bin/env go run $0 $@; exit
package main
import "fmt"
WITH RECURSIVE | |
x(i) AS ( VALUES (0) | |
UNION ALL SELECT i + 1 | |
FROM x | |
WHERE i < 101), | |
Z(Ix, Iy, Cx, Cy, X, Y, I) AS ( | |
SELECT | |
Ix, | |
Iy, | |
X :: FLOAT, |
package main | |
import ( | |
"errors" | |
"log" | |
"os" | |
"github.com/PuerkitoBio/goquery" | |
"github.com/robertkrimen/otto" | |
) |
import email, getpass, imaplib, os | |
detach_dir = '.' # directory where to save attachments (default: current) | |
user = raw_input("Enter your GMail username:") | |
pwd = getpass.getpass("Enter your password: ") | |
# connecting to the gmail imap server | |
m = imaplib.IMAP4_SSL("imap.gmail.com") | |
m.login(user,pwd) | |
m.select("cs2043") # here you a can choose a mail box like INBOX instead |
#To install ruby-debug on Ubuntu ruby-1.9.3 you need to download from http://rubyforge.org/frs/?group_id=8883 | |
linecache19-0.5.13.gem | |
ruby_core_source-0.1.5.gem | |
ruby-debug19-0.11.6.gem | |
ruby-debug-base19-0.11.26.gem | |
#Then in your console | |
export RVM_SRC=/your/path/to/ruby-1.9.3 |
(use '[clojure.core.match :only [match]]) | |
(defn evaluate [env [sym x y]] | |
(match [sym] | |
['Number] x | |
['Add] (+ (evaluate env x) (evaluate env y)) | |
['Multiply] (* (evaluate env x) (evaluate env y)) | |
['Variable] (env x))) | |
(def environment {"a" 3, "b" 4, "c" 5}) |