shanewholloway

function show_memory(interval=1000) {
  setTimeout(show_memory, interval).unref()
  let out = []

  const mem = process.memoryUsage()
  out.push('MEM')
  for (const [k,v] of Object.entries(mem)) {
    out.push(`${k}: ${(v / 1.0e6).toFixed(1)} MB`)
  }

shanewholloway

#!/bin/bash
FAIL=0
for job_pid in `jobs -p`; do
  echo "Joining job $job_pid"
  wait $job_pid || let "FAIL+=1"
done
if [[ "$FAIL" != "0" ]]; then
  echo Failed join processes $FAIL
  exit 1
fi

shanewholloway

function promiseQueue(nextPromise=() => Promise.resolve()) {
  let tip = null
  return function () {
    if (null === tip) {
      tip = nextPromise()
      tip.then(clear_tip) }
    return tip
  }
  function clear_tip() { tip = null }
}

shanewholloway

Working with React next at 16.0.0-rc.2 using the development/non-production path, the commonjs module 'object-assign' does not result in a usable function.

Versions

• Mac OS X 10.12.6 using node 8.4 and 8.5

Instructions

1. $ npm install && npm run build

shanewholloway

(function () {
'use strict';

function createCommonjsModule(fn, module) {
	return module = { exports: {} }, fn(module, module.exports), module.exports;
}

/*
object-assign
(c) Sindre Sorhus

shanewholloway

node_modules/
*/node_modules/
*/build
*/dist
./yarn.lock
./package-lock.json

shanewholloway

function promiseSome(promises) ::
  // a cross between Promise.all and Promise.race
  promises = Array.from(promises).filter(e => e)
  return new Promise @ resolve => ::
    const result = []
    result.done = new Promise @ done => ::
      let count = promises.length
      if 0 === count ::
        resolve(result)
        done(result)

shanewholloway

#!/bin/bash
node -e 'require("http").createServer((req,res) => {res.end([[req.method, req.httpVersion, req.url], ["On host:", require("os").hostname()], []].map(l=>l.join(" ")).join("\n"))}).listen(3001, "0.0.0.0", ()=> {})'

shanewholloway

## docker stack deploy -c docker-stackfile.yml gist_demo
version: "3.8"

services:
  playground:
    image: node:alpine
    hostname: '{{.Task.Name}}'
    environment:
      SWARM_TASK: '{{.Task.Name}}'
      SWARM_PEERS: "tasks.{{.Service.Name}}"

shanewholloway

class Rectangle ::
  constructor(height, width) ::
    this.height = height;
    this.width = width;

  toString() ::
    return `(${this.height} ${this.width})`;