This document appears to be a presentation on JavaScript best practices. It discusses using JavaScript pipelines and techniques like using arrow functions, template strings, and async/await that are common in modern JavaScript. It encourages writing type-safe JavaScript and having testing suites that run across browsers, command line and continuous integration for quality code. The presentation promotes tools like Wallaby that can provide instant feedback during development.

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JAVASCRIPT OVERLOAD
PavelVeller,
Director of R&D, BrainJocks
Sitecore MPV 2015

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1. CANYOU SPEAK A PIPELINE ?
2. WHYWRITE JAVASCRIPT LIKE IT’S C# 2.0?
3. CHUTZPAHTOWALLABYYOUR KARMA

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CANYOU SPEAK
A PIPELINE ?

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SPOPVS. SPEAK
SPOP
• Web.config
• Config patch
• C#
• Server-Side
• Proceed with caution
SPEAK
• core database
• Item(s) deployment
• JavaScript
• Client-Side
• Proceed with caution
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DECLARED
PATCHED
LANGUAGE
RUNTIME
MULTI-TENANCY

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RECOMMENDATIONS
• Reverse engineer and trace a few built-in before you
build your first one
• Pay attention to the interface convention (e.g.
empty processor)
• You know a lot less in the client side than you do
back home
• DevTools is your best friend
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WHERETO LEARN MORE
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TOUGH IT OUT
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YOU WILL BE REWARDED
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THE FUTURETODAY

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C# 2.0
• No Lambda Expressions
• No ImplicitTyping
• No AnonymousTypes
• No Object and Collection Initializers
• No ExpressionTrees
• No LINQ
• No dynamic
• No async/await
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ARROW FUNCTIONS

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TEMPLATE STRINGS

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ASYNC / AWAIT

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TYPE SYSTEMS

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Your IDE can only do as
much as your language's
type system allows it to
confidently infer

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OLD SCHOOL

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CHUTZPAHTO
WALLABYYOUR
KARMA

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TEST SUITETHAT:
• Runs in your browser (so you can debug)
• Runs inVisual Studio along with other tests
• Runs in command line
• Runs on the build machine (with reports)
• BONUS: Runs continuously and concurrently with
instant green/red feedback loop (NCrunch-style)
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BROWSER
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VISUAL STUDIO
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CONTINUOUS INTEGRATION
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WALLABY
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Q & A

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SM
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