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Basic setup for using Enzyme/Mocha/Chai with create-react-app

This is a temporary solution. Might change in the near future, this depends on how create-react-app will implement testing.

create-react-app quick-test-example

cd quick-test-example

npm run eject

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<h1>Simple Pure CSS Drop Down Menu</h1>
<nav id="primary_nav_wrap">
<ul>
  <li class="current-menu-item"><a href="#">Home</a></li>
  <li><a href="#">Menu 1</a>
    <ul>
      <li><a href="#">Sub Menu 1</a></li>
      <li><a href="#">Sub Menu 2</a></li>
      <li><a href="#">Sub Menu 3</a></li>
      <li><a href="#">Sub Menu 4</a>

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The Problem

Standard practices say no non-root process gets to talk to the Internet on a port less than 1024. How, then, could I get Node talking on port 80 on EC2? (I wanted it to go as fast as possible and use the smallest possible share of my teeny tiny little micro-instance's resources, so proxying through nginx or Apache seemed suboptimal.)

The temptingly easy but ultimately wrong solution:

Alter the port the script talks to from 8000 to 80:

}).listen(80);

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server {
	index index.php;
	set $basepath "/var/www";

	set $domain $host;

	# check one name domain for simple application
	if ($domain ~ "^(.[^.]*)\.dev$") {
		set $domain $1;
		set $rootpath "${domain}";

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#!/bin/bash
# file: ttfb.sh
# curl command to check the time to first byte
# ** usage **
# 1. ./ttfb.sh "https://google.com"
# 2. seq 10 | xargs -Iz ./ttfb.sh "https://google.com"

curl -o /dev/null \
     -H 'Cache-Control: no-cache' \
     -s \

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/* begin table creation */

create table department
 (dept_id smallint unsigned not null auto_increment,
  name varchar(20) not null,
  constraint pk_department primary key (dept_id)
 );

create table branch
 (branch_id smallint unsigned not null auto_increment,

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//https://egghead.io/lessons/javascript-add-a-browser-build-to-an-npm-module
import { join } from "path";

export default {
  entry: "./src/index.js",
  output: {
    path: join(__dirname, "dist"),
    libraryTarget: "umd",
    library: "starWarsNames"
},

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Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

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First principles battery

• what are the materials constituents of batteries

• what is spot market value of the material constituents

• Cobalt, nickel, aluminium, carbon and polymers for separation and steel can.

Break that down on a material basis and say okay if we bought that in London metal exchange, what would each of those things cost. Its $80 per kilowatt hour

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#!/bin/bash
FILE=$1

if [[ -f $FILE ]]; then
  git filter-branch -f --index-filter "git rm -r --cached $FILE --ignore-unmatch" --prune-empty --tag-name-filter cat -- --all
else
  echo File required
fi