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The State of Angular
Minko Gechev
May 07, 2020
Programming
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The State of Angular
Minko Gechev
May 07, 2020
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Transcript
@yourtwitter The State of Angular Minko Gechev twitter.com/mgechev github.com/mgechev blog.mgechev.com
@yourtwitter https://unsplash.com/photos/rafblRbne3o
@mgechev v9.1 is out
@mgechev
@mgechev Smaller Faster builds Better debugging Better type checking Improved
build errors Simpler Improved i18n Improvements in Universal
@mgechev Smaller Faster builds Better debugging Better type checking Improved
build errors Simpler Improved i18n Improvements in Universal
Predictability vs Flexibility trade-offs Predictable Flexible
Static vs Dynamic trade-offs Static Dynamic
Static vs Dynamic trade-offs Static Dynamic
• Great compile-time optimizations • Excellent IDE/text editor support •
Strict type checking • Source code visualization • Lazy component loading • Dynamic UI assembling • Fast builds Static Dynamic
• Great compile-time optimizations • Excellent IDE/text editor support •
Strict type checking • Source code visualization • Lazy component loading • Dynamic UI assembling • Fast builds Static Dynamic
• Great compile-time optimizations • Excellent IDE/text editor support •
Strict type checking • Source code visualization • Lazy component loading • Dynamic UI assembling • Fast builds Static Dynamic 2.0 4.0
• Great compile-time optimizations • Excellent IDE/text editor support •
Strict type checking • Source code visualization • Lazy component loading • Dynamic UI assembling • Fast builds Static Dynamic 4.0 9.0
• Great compile-time optimizations • Excellent IDE/text editor support •
Strict type checking • Source code visualization • Lazy component loading • Dynamic UI assembling • Fast builds Static Dynamic 9.0
@mgechev So, Angular is now more dynamic!
@mgechev …but not too dynamic
@mgechev • Do something • Collect feedback • Adjust direction
“Gradient descent” optimization
@mgechev • Do something • Collect feedback • Adjust direction
“Gradient descent” optimization
twitter.com/mgechev @mgechev
@mgechev Google Community
@mgechev
@mgechev Faster builds -40%
@mgechev VE @Component({ selector: 'app', template: ' ...' }) class
AppComponent { ... } app.ngfactory.js app.ngsummary.json app.metadata.json app.component.js app.component.d.ts
@mgechev Ivy @Component({ selector: 'app', template: ' ...' }) class
AppComponent { ... } app.component.js app.component.d.ts
@mgechev Faster builds • We do less work • No
longer generate factories • ngcc does this once* • No longer using metadata.json • Incremental AoT builds
@mgechev Faster builds • We do less work • No
longer generate factories • ngcc does this once* • No longer using metadata.json • Incremental AoT builds AoT in development
@mgechev
@mgechev
@mgechev
@mgechev Smaller bundles • Less generated code • Smaller framework
@mgechev Smaller framework • Tree-shakable instructions • No need for
ngfactory machinery
@mgechev Improved i18n
Angular compile-time i18n (v2-v8) src lib Link & optimize ngc
ngc l10n l10n l10n l10n
Angular compile-time i18n (v2-v8) src lib Link & optimize ngc
ngc l10n l10n repeat
@mgechev Focused on static optimizations • Generate app at compile-time:
• No runtime binding overhead • Smaller bundles: • Localizations are hard to tree-shake • No need for binding instructions
Angular compile-time i18n (Ivy) src lib Link & optimize l10n
repeat ngc
@mgechev Angular Universal
@mgechev Challenges with Universal • Change-refresh time • Deployment
@yourtwitter $ ng add @nguniversal/express-engine $ ng run [PROJECT_NAME]:serve-ssr New
in v9!
@yourtwitter $ ng update @nguniversal/express-engine
twitter.com/mgechev @ManfredSteyer @AlanAgius4 @mgechev
twitter.com/mgechev Deployment
twitter.com/ mgechev New in @angular/fire
New in @angular/fire
twitter.com/ mgechev New in @angular/fire
twitter.com/mgechev Request / HTML @mgechev Request scripts JS TTI Run
app on server LCP
twitter.com/mgechev Request / HTML @mgechev Request scripts JS TTI Run
app on server LCP If not cached Return from the cache Cache LCP
@mgechev Prerendering
@yourtwitter $ ng add @nguniversal/express-engine $ ng run [PROJECT_NAME]:prerender Using
Universal at build-time New in v9!
@mgechev Building the app Prerendering <2s for 800 pages ng
run app:prerender
twitter.com/mgechev
twitter.com/mgechev @mgechev JAMStack By HeroDevs
twitter.com/mgechev @mgechev
@mgechev Thank you! twitter.com/mgechev github.com/mgechev blog.mgechev.com Survey: mgv.io/talk