joshxyzhimself

-- Haversine Formula based geodistance in miles (constant is diameter of Earth in miles)
-- Based on a similar PostgreSQL function found here: https://gist.github.com/831833
-- Updated to use distance formulas found here: http://www.codecodex.com/wiki/Calculate_distance_between_two_points_on_a_globe
CREATE OR REPLACE FUNCTION public.geodistance(alat double precision, alng double precision, blat double precision, blng double precision)
  RETURNS double precision AS
$BODY$
SELECT asin(
  sqrt(
    sin(radians($3-$1)/2)^2 +
    sin(radians($4-$2)/2)^2 *

joshxyzhimself

Reuse puppeteer cookies in tough-cookie and got

This way we can send HTTP requests from the Node.js instead of UI interactions.

Set puppeteer cookies to tough-cookie's CookieJar

const cookies = await page.cookies()
cookies.forEach(
  async cookie => {
 await setCookie(

joshxyzhimself

# Reliable persistent SSH-Tunnel via systemd (not autossh)
# https://gist.github.com/guettli/31242c61f00e365bbf5ed08d09cdc006#file-ssh-tunnel-service

[Unit]
Description=Tunnel for %i
After=network.target

[Service]
User=tunnel
ExecStart=/usr/bin/ssh -o "ExitOnForwardFailure yes" -o "ServerAliveInterval 60" -N tunnel@%i

joshxyzhimself

let fnGetFileNameFromContentDispostionHeader = function (header) {
    let contentDispostion = header.split(';');
    const fileNameToken = `filename*=UTF-8''`;

    let fileName = 'downloaded.pdf';
    for (let thisValue of contentDispostion) {
        if (thisValue.trim().indexOf(fileNameToken) === 0) {
            fileName = decodeURIComponent(thisValue.trim().replace(fileNameToken, ''));
            break;
        }

joshxyzhimself

#
# This is the ultimate HAProxy 2.0 "Getting Started" config
# It demonstrates many of the features available which are now available 
# While you may not need all of these things, this can serve
# as a reference for your own configurations.
#
# Have questions?  Check out our community Slack:
# https://slack.haproxy.org/
#

joshxyzhimself

import { useState, useEffect, useCallback } from 'react';

function useHistory () {

  const [pathname, set_pathname] = useState(window.location.pathname);

  const push = useCallback((next_pathname) => {
    if (pathname !== next_pathname) {
      window.history.pushState(null, null, next_pathname);

joshxyzhimself

class AssertionError extends Error {

  /**
   * @param {String|void} message
   */
  constructor (message) {
    super(message);
    this.name = 'AssertionError
    if (Error.captureStackTrace instanceof Function) {
      Error.captureStackTrace(this, AssertionError);

joshxyzhimself

// JSON to Uint8Array parsing and visa versa
// (Intended Bluetooth communication on Cordova)

var JsonToArray = function(json)
{
	var str = JSON.stringify(json, null, 0);
	var ret = new Uint8Array(str.length);
	for (var i = 0; i < str.length; i++) {
		ret[i] = str.charCodeAt(i);
	}

joshxyzhimself

Doxbee sequential
benchmarking ./doxbee-sequential/async-bluebird.js
{"time":428,"mem":60.38671875,"errors":0,"lastErr":null}
benchmarking ./doxbee-sequential/async-es2017-native.js
{"time":591,"mem":98.82421875,"errors":0,"lastErr":null}
benchmarking ./doxbee-sequential/async-es2017-util.promisify.js
{"time":479,"mem":69.7734375,"errors":0,"lastErr":null}
benchmarking ./doxbee-sequential/callbacks-baseline.js
{"time":149,"mem":29.99609375,"errors":0,"lastErr":null}

joshxyzhimself

// rendered at http://localhost:8080/account

export const Account = (props) => {
  const { user } = props;
  return (
    <div>
    { user.username }
    </div>
  );
};