davidpaulhunt

What is a variable?

Note: You will usually see const and let when using variables. However, you will see legacy code that uses var to declare variables. DO NOT DO THIS, it is uneccessary in modern JavaScript.

A variable is a container for some value, usually one we want to re-use.

Consider this plain english example:

My name is Clark Kent.

davidpaulhunt

// simulate static variable
// auto incrementing id generator
const idGen = (() => {
  let id = 0;
  return () => {
    id++;
    return id;
  };
})();

davidpaulhunt

import * as React from "react";

const Ctx = React.createContext({
  currency: "USD",
  format: (val) => val,
  setCurrency: () => {},
});

Ctx.displayName = "CurrencyCtx";

davidpaulhunt

<h1>IHEARTRADIO FAMILY PRIVACY & COOKIE NOTICE</h1>

<p>UPDATED AS OF: July 15, 2019</p>

<p>iHeartMedia, Inc. (“iHeartMedia”, “we”, “us”, or “our”) is committed to maintaining your confidence and trust as it relates to the privacy of children who use our technology platforms. This policy complies with the Children’s Online Privacy Protection Act (“COPPA”). Please read below to learn how we collect, protect, share and use information collected via our child-directed technology platforms (“Platforms”), including iHeartRadio Family.</p>

<h2>QUICK GUIDE TO CONTENTS</h2>
<ol><li>INFORMATION WE COLLECT</li>
<li>HOW WE USE THE INFORMATION WE COLLECT</li>
<li>SHARING OF INFORMATION</li>

davidpaulhunt

Keybase proof

I hereby claim:

• I am davidpaulhunt on github.
• I am davidhunt (https://keybase.io/davidhunt) on keybase.
• I have a public key ASDmBgtUpvurri5GvWpWXLw6q_hfxbm_0dUtmYqBCNeF8Qo

To claim this, I am signing this object:

davidpaulhunt

Controller

Description:

Stubs out a new controller and its views. Pass the controller name, either
CamelCased or under_scored, and a list of views as arguments.

To create a controller within a module, specify the controller name as a
path like 'parent_module/controller_name'.

This generates a controller class in app/controllers and invokes helper,

davidpaulhunt

IAM User Account Creation

Assuming that your account has been created for you, be certain to receive and store the following key/value pairs:

• username
• password
• access_key_id
• secret_access_key
• sign-in link

davidpaulhunt

Components

• https://itnext.io/using-advanced-design-patterns-to-create-flexible-and-reusable-react-components-part-1-dd495fa1823

Context API

• https://itnext.io/using-advanced-design-patterns-to-create-flexible-and-reusable-react-components-part-2-react-3c5662b997ab

Redux et all

davidpaulhunt

const request = require('request');

const INIT_URL = 'http://letsrevolutionizetesting.com/challenge.json';

function requestChallenge(url) {
  return new Promise((resolve, reject) => {
    request.get(url, { json: true }, (error, response, body) => {
      if (error) {
        reject(error);
      } else {

davidpaulhunt

package main

import "fmt"

type IPAddr [4]byte

// Problem: Add a "String() string" method to IPAddr.
// Solution:
func (ip IPAddr) String() string {
	return fmt.Sprintf("%v.%v.%v.%v", ip[0], ip[1], ip[2], ip[3])