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sip-of-reactjs
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Prathamesh Sonpatki
July 25, 2015
2
810
sip-of-reactjs
Check bit.ly/sip-of-reactjs
Prathamesh Sonpatki
July 25, 2015
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Transcript
Sip of React.JS Prathamesh Sonpatki @_cha1tanya
None
Agenda http://bit.ly/sip-of-reactjs
Open Library Search Project
React
Build UI
V in MVC
Simple
Declarative
if encodingCompleted removeLoader(); updateHeaderText(‘Encoding completed.’) else showLoader();
if encodingCompleted removeLoader(); updateHeaderText(‘Encoding completed.’) else showLoader(); if encodingCompleted <header>Encoding
Completed</header> else <div>Loading…</div>
Unconventional ideas
Hello World
"The secret to building large apps is never build large
apps. Break your applications into small pieces. Then, assemble those testable, bite-sized pieces into your big application" Justin Meyer, author of CanJS
Components
Component is fn()
Reusable
Composable
Separation of concerns
Let’s look closely
ಠ_ಠ
JSX
None
JSX is like a healthy vegetable that tastes like decadent
chocolate cake. You feel guilty, but it’s good. Eric Elliot
Give it 5 minutes https://signalvnoise.com/posts/3124- give-it-five-minutes
One book at a time
No templates
Any sufficiently complicated templating language contains an ad hoc, informally-specified,
bug-ridden, slow implementation of a turing complete programming language. - Jasim A Basheer
List of books
React === JavaScript #=> true
Managing Data
Data changing over time is root of evil Pete Hunt
Props
Immutable
One way data flow
Parent to Child
Child to Parent ????
propTypes
State
State is internal
getInitialState()
Responding to state changes
setState()
Refresh
Re-Rendering the component
Re-Rendering the component tree
Will it be too slow?
Virtual DOM
Diff
Minimal set of changes
Batch updates
Nothing is new!
Component Lifecycle hooks
componentWillMount componentDidMount componentWillReceiveProps componentWillUnmount componentDidUnmount
Some patterns
Avoid state as much as possible
props > state
Dumb components
Learning Curve
Just JavaScript
Just JavaScript & JSX
Just JavaScript
Easy to sneak into existing projects
Let me know your experience!
Thanks! @_cha1tanya @BigBinary