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gaearon /
Last active June 11, 2024 07:33
Modern JavaScript in React Documentation

If you haven’t worked with JavaScript in the last few years, these three points should give you enough knowledge to feel comfortable reading the React documentation:

  • We define variables with let and const statements. For the purposes of the React documentation, you can consider them equivalent to var.
  • We use the class keyword to define JavaScript classes. There are two things worth remembering about them. Firstly, unlike with objects, you don't need to put commas between class method definitions. Secondly, unlike many other languages with classes, in JavaScript the value of this in a method [depends on how it is called](
niw / fetch_nike_puls_all_activities.bash
Last active June 10, 2024 11:43
A simple NikePlus API description to fetch past run metrics
#!/usr/bin/env bash
# fetch_nike_puls_all_activities.bash
# A simple bash script to fetch all activities and metrics from NikePlus.
# See `` for the API details.
readonly bearer_token="$1"
if [[ -z "$bearer_token" ]]; then
echo "Usage: $0 bearer_token"

To the members of the MIT community:

We are writing to inform you of plans to upgrade the MIT campus network, and in particular to upgrade MIT to the next generation of Internet addressing. (Please note that no action is required on your part.)

Machines on the Internet are identified by addresses. The current addressing scheme, called IPv4, was specified around 1980, and allowed for about 4 billion addresses. That seemed enough at the time, which was before local area networks, personal computers and the like, but the Internet research community recognized around 1990 that this supply of addresses was inadequate, and put in place a plan to replace the IPv4 addresses with a new address format, called IPv6. IPv6 uses a 128-bit address scheme and is capable of 340 undecillion addresses (340 times 10^36, or 340 trillion trillion trillion possible IP addresses). This stock of addresses allows great flexibility in how addresses are assigned to hosts, for example allowing every host to use a range of addresses to

manojpandey /
Last active August 31, 2021 14:52
Attack of Pythons

Attack of Pythons

Among computer programmers, a “gotcha” has become a term for a feature of a programming language that is likely to play tricks on you to display behavior that is different than what you expect.

Just as a fly or a mosquito can “bite” you, we say that a gotcha can “bite” you. So, let's proceed to examine some of Python's gotchas !

alt text

dannguyen /
Last active February 15, 2023 15:59
Using Selenium and Python to screenshot a javascript-heavy page

Using Selenium and Python to screenshot a javascript-heavy page

As websites become more JavaScript heavy, it's harder to automate things like screenshotting for archival purposes. I've seen examples and suggestions to use PhantomJS for visual testing/archiving of websites, but have run into issues such as the non-rendering of webfonts. I've never tried out Selenium until today...and while I'm not thinking about performance implications yet, Selenium seems far more accurate than PhantomJS...which makes sense since it actually opens a real browser. And it's not too hard to script to do complex interactions: here's an [example of how to log in to Twitter, write a tweet, upload an image, and send a tweet via Selenium and DOM element selection](

likethesky / elixirphoenix.bash
Last active June 7, 2024 17:26
Installing Elixir & the Phoenix framework with Homebrew on OS X
$ brew update && brew doctor # Repeat, until you've done *all* the Dr. has ordered!
$ brew install postgresql # You'll need postgres to do this... you may also need to 'initdb' as well. Google it.
$ brew install elixir
$ mix local.hex # Answer y to any Qs
$ createuser -d postgres # create the default 'postgres' user that Chris McCord seems to like -- I don't create mine w/a pw...
# Use the latest Phoenix from here: -- currently this is 1.0.3
# ** Answer y to any Qs **
$ mix archive.install
Easy Mac
Copyright (2015) Sean Beck
Licensed under Creative Commons Attribution-ShareAlike 4.0 International
Easily change your MAC address on Linux using `ifconfig`
brianckeegan /
Last active June 19, 2021 13:31
Top Wikipedia stories in 2014
import numpy as np
import pandas as pd
from bs4 import BeautifulSoup, element
import urllib2, re
# Read the HTML from the webpage on Wikipedia stats and convert to soup
soup = BeautifulSoup(urllib2.urlopen('').read())
# Look for all the paragraphs with 2014
_p = soup.findAll('b',text=re.compile('2014'))
kracekumar / Writing better python
Last active February 19, 2024 03:06
Talk I gave at June bangpypers meetup.

Writing better python code

Swapping variables

Bad code

takeshixx /
Last active March 9, 2024 13:37
OpenSSL heartbeat PoC with STARTTLS support.
#!/usr/bin/env python2
Author: takeshix <>
PoC code for CVE-2014-0160. Original PoC by Jared Stafford (
Supportes all versions of TLS and has STARTTLS support for SMTP,POP3,IMAP,FTP and XMPP.
import sys,struct,socket
from argparse import ArgumentParser