Skip to content

Instantly share code, notes, and snippets.

View alexanderankin's full-sized avatar

David Ankin alexanderankin

34 followers · 43 following
  • (employed)
View GitHub Profile
@kkemple
kkemple / knexfile-example.js
Last active June 23, 2022 11:30
module.exports = {
development: {
client: 'postgresql',
connection: {
port: process.env.DATABASE_PORT,
host: process.env.DATABASE_HOST,
database: process.env.DATABASE_NAME,
user: process.env.DATABASE_USER,
password: process.env.DATABASE_ACCESS_KEY,
},
@gaearon
gaearon / slim-redux.js
Last active May 5, 2024 15:14
Redux without the sanity checks in a single file. Don't use this, use normal Redux. :-)
function mapValues(obj, fn) {
return Object.keys(obj).reduce((result, key) => {
result[key] = fn(obj[key], key);
return result;
}, {});
}
function pick(obj, fn) {
return Object.keys(obj).reduce((result, key) => {
if (fn(obj[key])) {
@kenfehling
kenfehling / index.html
Created September 15, 2015 21:30
A starter HTML page for JavaScript tutorials
<!DOCTYPE html>
<html lang="en">
<head>
<script src="main.js"></script>
<meta charset="UTF-8">
<title>Tutorial</title>
<style>
html, body {
margin: 0;
padding: 0;
@miloharper
miloharper / short_version.py
Created July 20, 2015 15:57
A neural network in 9 lines of Python code.
from numpy import exp, array, random, dot
training_set_inputs = array([[0, 0, 1], [1, 1, 1], [1, 0, 1], [0, 1, 1]])
training_set_outputs = array([[0, 1, 1, 0]]).T
random.seed(1)
synaptic_weights = 2 * random.random((3, 1)) - 1
for iteration in xrange(10000):
output = 1 / (1 + exp(-(dot(training_set_inputs, synaptic_weights))))
synaptic_weights += dot(training_set_inputs.T, (training_set_outputs - output) * output * (1 - output))
print 1 / (1 + exp(-(dot(array([1, 0, 0]), synaptic_weights))))
@kottenator
kottenator / simple-pagination.js
Created July 13, 2015 20:44
Simple pagination algorithm
// Implementation in ES6
function pagination(c, m) {
var current = c,
last = m,
delta = 2,
left = current - delta,
right = current + delta + 1,
range = [],
rangeWithDots = [],
l;
@atd-schubert
atd-schubert / Gitlab-with-unbundled-nginx.md
Last active February 26, 2024 12:14
gitlab with own nginx

How to setup gitlab without embedded nginx

Install via omnibus-package

install the normal way:

wget https://downloads-packages.s3.amazonaws.com/ubuntu-14.04/gitlab_7.7.2-omnibus.5.4.2.ci-1_amd64.deb & > /dev/null

sudo apt-get update
sudo apt-get upgrade
@justmoon
justmoon / custom-error.js
Last active April 22, 2024 17:19 — forked from subfuzion/error.md
Creating custom Error classes in Node.js
'use strict';
module.exports = function CustomError(message, extra) {
Error.captureStackTrace(this, this.constructor);
this.name = this.constructor.name;
this.message = message;
this.extra = extra;
};
require('util').inherits(module.exports, Error);
@skeggse
skeggse / crypto-pbkdf2-example.js
Last active May 21, 2024 09:21
Example of using crypto.pbkdf2 to hash and verify passwords asynchronously, while storing the hash and salt in a single combined buffer along with the original hash settings
var crypto = require('crypto');
// larger numbers mean better security, less
var config = {
// size of the generated hash
hashBytes: 32,
// larger salt means hashed passwords are more resistant to rainbow table, but
// you get diminishing returns pretty fast
saltBytes: 16,
// more iterations means an attacker has to take longer to brute force an
@toabctl
toabctl / libvirt-listen-events.py
Last active November 2, 2021 10:02
Listen for libvirt events
#!/usr/bin/python
import libvirt
import sys
# virDomainEventType is emitted during domain lifecycles (see libvirt.h)
VIR_DOMAIN_EVENT_MAPPING = {
0: "VIR_DOMAIN_EVENT_DEFINED",
1: "VIR_DOMAIN_EVENT_UNDEFINED",
2: "VIR_DOMAIN_EVENT_STARTED",
@soheilhy
soheilhy / nginxproxy.md
Last active May 16, 2024 08:59
How to proxy web apps using nginx?

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers