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import UIKit

class ViewController: UIViewController {
    
    @IBOutlet var webView: UIWebView!
    
    @IBAction func goBack(sender: AnyObject) {
      webView.goBack()
    }
    

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require 'rails_helper'

RSpec.describe Item, :type => :model do
  before(:each) do
    @purchased_item = Item.create(
      :name => "Item1",
      :qty => 1,
      :is_purchased => true
    )
    

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#RPS Lab Requirements

* Web Page/Web App that lets you play Rock Paper Scissors
* 2 Players (on the same screen)
* Win Logic (Tells the user who won)
* Custom styling (Fonts, Background, Images)
* Pictures for Rock, Paper, and Scissors
	
##Super Optional Bonus Challenge
* Play vs Computer (AI)

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Cheat Sheet: Simple Authentication in Rails 6 with has_secure_password

The goal of this cheatsheet is to make it easy to add hand-rolled authentication to any rails app in a series of layers.

First the simplest/core layers, then optional layers depending on which features/functionality you want.

Specs
AUTHOR	Ira Herman
LANGUAGE/STACK	Ruby on Rails Version 4, 5, or 6

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Cheat Sheet: MEANbean coffee shop

A cheatsheet by Ira Herman

Specs
AUTHOR	Ira Herman
LANGUAGE/STACK	Node JS 6.x/MEAN Stack
OUTCOME	A full stack MEAN application with CRUD actions

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Javascript functions and conditionals using (){}, and semicolons

CURLY BRACES:

Curly braces {} almost always indicate a block of code. { means START } means END

Keywords like

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Atom Packages & Notes

This document will recommend some of my favorite packages (plugins, add-ons, whatever you want to call them...they're awesome) for the Atom text editor. These give atom many of the features of a full IDE (Integrated Development Environment).

Atom Website

To browse & install packages, (in the menu bar) go to Atom >> Preferences >> Install and search for your desired package. Click install. That's it!

There are links to the package documentation from the Atom site. You can also view instructions on how to use each package from the packages menu Atom >> Preferences >> Packages

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Run Server:

python3 manage.py runserver

Create DB:

createdb <dbname>

Make migrations:

python3 manage.py makemigrations

Migrate DB:

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React Hooks

Intro to Hooks

Hooks were introduced in React Version 16.8.

Before hooks, all state needed to be within a Class component. Class components come with a lot of boilerplate, which can feel bulky, especially when dealing with a simpler state. Function components, on the other hand, are generally simpler and easier to read - but, until recently, could not manage their own state: they would receive some props, and return some JSX based on those props.

Hooks introduce state management to Function components, using a simpler and more flexible API. Here's an example of a Class component refactored to be a Function component with hooks:

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Hooks: useState

Learning Objectives:

• Explain what hooks do and how they let us use function components instead of class components.
• Work with tuples.
• Practice converting stateful class components to functional components with the useState hook.

🔗Codesandbox Demo