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Transcript of background…files.meetup.com/9951662/React-StevenVandeweghe-September201… · Unidirectional Data...
@bluecrowbar
Steven Vandeweghe iOS developer
background…
By JavaScript,Pixabay - pixabay.com, CC BY 4.0, https://commons.wikimedia.org/w/index.php?curid=49984167
never used
not on
reality distortion field
🤕
time tracking app
web macOS
iOS Android
web first
why React?
“learn once, write anywhere”
“a javascript library for building user interfaces”
I get it
the basics…
components
render()
JSX
mount
data
external → this.props internal → this.state
props
state
efficient?
efficient?
virtual DOM
lifecycle functions
render getInitialState
getDefaultProps propTypes
componentWillMount componentDidMount
componentWillUnmount shouldComponentUpdate
data?
unidirectional data flow
Image from Flux by Facebook
“you might not need Redux”
— Dan Abramov
https://medium.com/@dan_abramov/you-might-not-need-redux-be46360cf367#.4ea7e61oo
Single source of truth
State is read-only
Changes are made with pure functions
(reducers)
demo
tools
Thanks!
timeframeapp.com
