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<!DOCTYPE html>
<html>
<head>
<title>Pizasessie React & Redux</title>
<meta charset="utf-8">
<style>
@import url(https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz);
@import url(https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic);
@import url(https://fonts.googleapis.com/css?family=Ubuntu+Mono:400,700,400italic);
body { font-family: 'Droid Serif'; }
h1, h2, h3 {
font-family: 'Yanone Kaffeesatz';
font-weight: normal;
}
.remark-code, .remark-inline-code { font-family: 'Ubuntu Mono'; }
</style>
</head>
<body>
<textarea id="source">
class: center, middle
# Pizzasessie React & Redux
en een beetje Firebase
-- Jeroen Peeters --
---
# Topics
1. NPM
2. React
3. Redux
4. Firebase
5. Mobile app
---
# NPM
- NPM is the official package manager for Node.js
- NPM runs on the command line and manages dependencies for an application
- It also allows users to install Node.js applications that are available on the NPM registry
```json
{
"name": "my-project",
"version": "0.0.1",
"description": "My Awesome Node Project",
"main": "index.js",
"author": "Jeroen Peeters",
"dependencies": {
"react": "0.4.2"
}
}
```
---
# React
- A JavaScript library for building user interfaces
---
## Virtual DOM
- Replica of the Browser DOM
- React redraws the entire screen on change
- React calculates the minimum amount of changes required
---
## Virtual DOM
---
## Most important API methods
- React.createClass();
- React.render();
---
## React.createClass
- Creates a component class, given a specification
- A component implements a render method which returns a single child
- That child may have an arbitrarily deep child structure
- They are convenience wrappers that construct backing instances (via new) for you
```js
var React = require('react');
var Hello = React.createClass({
render: function () {...}
});
module.exports = Hello;
```
---
### render()
- Required
- Returns a single child component that is either a virtual representation of a native DOM component or composite component
---
### render()
- Should be pure
- Should not modify component state
- Should return the same result each time it's invoked
- Should not read from or write to the DOM
- Work should be performed in other lifecycle methods
---
## React.render()
- Renders a ReactElement into the DOM of the supplied container
- Returns a reference to the component
- Replaces the contents of the container node you pass in
```js
React.render(<Hello friend="WoooHooo"/>, document.getElementById('app'));
```
---
## JSX
- JavaScript syntax extension that looks similar to XML
- Compiles to actual JavaScript
---
### Plain JS
```js
render : function () {
return (
React.createElement("div", {className: "ui message"},
React.createElement("div", {className: "ui huge header"}, this.state.greeting),
React.createElement("div", {className: "ui large header"}, this.props.friend)
)
);
}
```
---
### JSX
```js
render : function () {
return (
<div className="ui message">
<div className="ui huge header">{this.state.greeting}</div>
<div className="ui large header">{this.props.friend}</div>
</div>
);
}
```
---
# Redux
- Redux is a predictable state container for JavaScript apps
- Store
- Actions
- Reducer
---
## Basic Principle
- (previousState, action) -> newState
---
## Advanced Principles
---
# Firebase
- Real time database
- By Google
- Serverless
- Push changes
---
# Acknowledgements
This presentation makes extensive use of the resources listed below and should be
considered a modest subset of all the information available in the linked resources.
- https://github.com/objectpartners/react-redux-workshop
- https://www.slideshare.net/nikgraf/react-redux-introduction
- https://btholt.github.io/complete-intro-to-react/
</textarea>
<script src="https://remarkjs.com/downloads/remark-latest.min.js">
</script>
<script>
var slideshow = remark.create();
</script>
</body>
</html>