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REINVENTING RXJS€¦ · INTRODUCING RXJS Part of the Reactive X Family API for asynchronous...
Transcript of REINVENTING RXJS€¦ · INTRODUCING RXJS Part of the Reactive X Family API for asynchronous...
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REINVENTING RXJS@_maxgallo
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HI !
I'M MAX GALLOAbout me:
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Principal Engineer
twitter: @_maxgallomore: maxgallo.io
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HERE'S THE AGENDA1. Introduction
2. Reinventing RxJS3. Deep Dive Schedulers
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INTRODUCTION
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INTRODUCING RXJSPart of the Reactive X Family
API for asynchronous programmingwith observable streams
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REINVENTINGTHE WHEEL
BY
TAKING THINGS APART
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REINVENTING RXJS
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RXJS CODE FIRST IMPRESSIONS
> Syntax is library specific> Explicit Subscription> Observable TC39 stage 1
> Pipeline operator TC39 stage 1
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! LET'S REINVENT RXJS
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Source
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RXJS OPERATORS
Operator 1 -->> Operator 2 -->> Operator 3
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RXJS FROM THE INSIDE
> Made of reusable parts > Streams> Standard contract between parts
> custom operators> Lazy evaluation
> Synchronous by default > Schedulers
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DEEP DIVE SCHEDULERS
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Schedulers in RxJS are things that control the order of event emissions (to Observers) and the speed of those event emissions.
— André Staltz
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ORDER OF EVENT EMISSIONSSPEED OF EVENT EMISSIONS
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CONSOLE
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QUEUE / ASAP / ASYNC / ANIMATIONFRAME
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requestAnimationFrame(task) | Promise.resolve().then(task) | | | | |
QUEUE / ASAP / ASYNC / ANIMATIONFRAME | | | | synchronous | | setInterval(task, delay)
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Order of event emissions
QUEUE / ASAP / ASYNC / ANIMATIONFRAME
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Order of event emissions
QUEUE / ASAP / ASYNC / ANIMATIONFRAMESpeed of event emissions
/ VIRTUALTIME /
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VIRTUAL TIME SCHEDULER( Hands on
! example )
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WE MADE IT !
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> DISASSEMBLETAKE THINGS APART TO UNDERSTAND
WHAT'S GOING ON
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> REINVENTBUILD YOUR OWN VERSION
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> LEARNBUILD MEANS LEARN
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> SHARETELL OTHERS WHAT YOU DID
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DISASSEMBLE / REINVENT / LEARN / SHARE
twitter @_maxgalloother maxgallo.io
THANK YOU !
slides github.com/maxgallo/talk-reinventing-rxjs