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@stepankuzmin
stepankuzmin / app.js
Created October 26, 2017 14:44
NodeJS server with PostgreSQL streaming
const http = require('http');
const Pool = require('pg-pool');
const bluebird = require('bluebird');
const JSONStream = require('JSONStream');
const QueryStream = require('pg-query-stream');
const pool = new Pool({
user: 'postgres',
host: 'localhost',
database: 'data',
@aparrish
aparrish / understanding-word-vectors.ipynb
Last active July 9, 2024 15:59
Understanding word vectors: A tutorial for "Reading and Writing Electronic Text," a class I teach at ITP. (Python 2.7) Code examples released under CC0 https://creativecommons.org/choose/zero/, other text released under CC BY 4.0 https://creativecommons.org/licenses/by/4.0/
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@joshdover
joshdover / README.md
Last active September 28, 2023 21:38
Idiomatic React Testing Patterns

Idiomatic React Testing Patterns

Testing React components seems simple at first. Then you need to test something that isn't a pure interaction and things seem to break down. These 4 patterns should help you write readable, flexible tests for the type of component you are testing.

Setup

I recommend doing all setup in the most functional way possible. If you can avoid it, don't set variables in a beforeEach. This will help ensure tests are isolated and make things a bit easier to reason about. I use a pattern that gives great defaults for each test example but allows every example to override props when needed:

@volkanunsal
volkanunsal / docker-compose.yml
Last active September 28, 2017 07:23
docker-postgis setup with streaming replication
master:
image: mdillon/postgis:9.3
ports:
- '5432:5432'
volumes:
- /import_data
- ./postgis/init-master.sh:/docker-entrypoint-initdb.d/init-master.sh
- ./postgis:/tmp/postgresql
restart: always
environment:

2015-01-29 Unofficial Relay FAQ

Compilation of questions and answers about Relay from React.js Conf.

Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.

What is Relay?

Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).

Virtual DOM and diffing algorithm

There was a [great article][1] about how react implements it's virtual DOM. There are some really interesting ideas in there but they are deeply buried in the implementation of the React framework.

However, it's possible to implement just the virtual DOM and diff algorithm on it's own as a set of independent modules.

@ndarville
ndarville / business-models.md
Last active January 13, 2024 17:27
Business models based on the compiled list at http://news.ycombinator.com/item?id=4924647. I find the link very hard to browse, so I made a simple version in Markdown instead.

Business Models

Advertising

Models Examples
Display ads Yahoo!
Search ads Google
@nikcub
nikcub / README.md
Created October 4, 2012 13:06
Facebook PHP Source Code from August 2007
@erans
erans / get_lat_lon_exif_pil.py
Created May 20, 2011 21:16
Get Latitude and Longitude from EXIF using PIL
from PIL import Image
from PIL.ExifTags import TAGS, GPSTAGS
def get_exif_data(image):
"""Returns a dictionary from the exif data of an PIL Image item. Also converts the GPS Tags"""
exif_data = {}
info = image._getexif()
if info:
for tag, value in info.items():
decoded = TAGS.get(tag, tag)