Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Fast Angular Apps from End to End
Search
Minko Gechev
September 29, 2020
Programming
0
130
Fast Angular Apps from End to End
Minko Gechev
September 29, 2020
Tweet
Share
More Decks by Minko Gechev
See All by Minko Gechev
Change the World With Open Source Software
mgechev
0
110
The State of Angular
mgechev
1
160
The State of Angular
mgechev
1
260
Software Engineering as a Superpower
mgechev
1
140
Introduction to Angular
mgechev
1
130
Internals of the Angular CLI
mgechev
2
1.2k
The State of Angular
mgechev
1
140
The State of Angular Deployment, SSR, and Prerendering, ng-conf keynote
mgechev
2
2.8k
The Future of the Front-End Frameworks
mgechev
2
270
Other Decks in Programming
See All in Programming
API Platform for Laravel
dunglas
1
660
サーバーレスで負荷試験!Step Functions + Lambdaを使ったk6の分散実行
shuntakahashi
6
1.6k
状態管理ライブラリZustandの導入から運用まで
k1tikurisu
3
470
REXML改善のその後
naitoh
0
190
How to Break into Reading Open Source
kaspth
2
220
Pythonで改めて考える「クラス(class)」の使いどころ
os1ma
5
1.2k
僕が思い描くTypeScriptの未来を勝手に先取りする
yukukotani
9
2.4k
Method Swizzlingを行うライブラリにおけるマルチモジュール設計
yoshikma
0
120
XStateでReactに秩序を与えたい
gizm000
0
740
2024 컴포즈 정원사
jisungbin
0
150
React + TextAliveでカッコいいLyric Applicatioinを作ろう!!
tosuri13
0
400
rails_girls_is_my_gate_to_join_the_ruby_commuinty
maimux2x
0
200
Featured
See All Featured
What's in a price? How to price your products and services
michaelherold
242
11k
Stop Working from a Prison Cell
hatefulcrawdad
267
20k
10 Git Anti Patterns You Should be Aware of
lemiorhan
653
58k
Building Applications with DynamoDB
mza
90
6k
Building Better People: How to give real-time feedback that sticks.
wjessup
359
19k
Web Components: a chance to create the future
zenorocha
309
42k
In The Pink: A Labor of Love
frogandcode
139
22k
Imperfection Machines: The Place of Print at Facebook
scottboms
263
13k
4 Signs Your Business is Dying
shpigford
179
21k
How to Ace a Technical Interview
jacobian
274
23k
Web development in the modern age
philhawksworth
205
10k
Debugging Ruby Performance
tmm1
72
12k
Transcript
@yourtwitter Fast Angular Apps from End to End Minko Gechev
twitter.com/mgechev github.com/mgechev blog.mgechev.com
@yourtwitter Description or Image @twitterhandle Agenda • Web vitals and
LCP • Tips & tricks • Application in production
@mgechev
@yourtwitter @mgechev • Minification/dead code elimination • Differential loading •
Understand what you serve • Code-splitting • Server-side rendering Improving LCP
twitter.com/mgechev
@mgechev
@mgechev
@yourtwitter @mgechev Differential loading • Produce ES2015 for modern browsers
• Do not send polyfills to modern browsers • Smaller payload • Do not downlevel modern features • Faster execution • Smaller payload
@mgechev -65KB polyfills ~2-10% smaller bundles
@mgechev Step 1: Load HTML Step 2: Look at script
tags Step 2: Download right version Differential loading
@yourtwitter Differential loading <!DOCTYPE html> <html lang="en"> <head> <title>Differential loading
</title> </head> <body> <script type="module" src="app-es2015.js"> </script> <script nomodule src="app-es5.js"> </script> </body> </html>
@yourtwitter Differential loading <!DOCTYPE html> <html lang="en"> <head> <title>Differential loading
</title> </head> <body> <script type="module" src="app-es2015.js"> </script> <script nomodule src="app-es5.js"> </script> </body> </html>
@yourtwitter If you’re still not on version 8 $ ng
update @angular/cli @angular/core
@mgechev My production bundles are so small! Nobody
@yourtwitter @mgechev • Minification/dead code elimination • Differential loading •
Understand what you serve • Code-splitting • Server-side rendering Improving LCP
@mgechev Framework has constant size framework app code
@mgechev Framework has constant size framework app code dependency dependency
@mgechev Framework has constant size framework app code dependency dependency
dependency dependency dependency dependency dependency
@mgechev Framework has constant size framework app code dependency dependency
dependency dependency dependency dependency dependency
@yourtwitter Using source-map-explorer to understand your bundles $ vim angular.json
$ ng build --prod $ source-map-explorer dist/app/main.hash.js
@mgechev
@mgechev Large 3P dependency Other dependencies
@mgechev Framework
@yourtwitter @mgechev Shipping fewer bytes • Minification/dead code elimination •
Differential loading • Understand what you serve • Code-splitting • Server-side rendering
twitter.com/mgechev lazy-loading
@yourtwitter @mgechev • Component-level • Route-level Code-splitting could be
@yourtwitter @mgechev • Component-level • Route-level Code-splitting could be
@yourtwitter @mgechev • Component-level • Route-level Code-splitting could be
@mgechev
@yourtwitter Route-based code-splitting const routes: Routes = [ { path:
'settings', loadChildren: import('./settings/settings.module') .then(m => m.SettingsModule); }, ... ];
@mgechev
@mgechev
twitter.com/mgechev Step 1: Open https://example.com/ Step 2: Determine JavaScript which
is likely to be required Step 3: Download the chunks Step 4: Store chunks in browser cache Preloading
twitter.com/mgechev
@yourtwitter @mgechev • Prefetch visible links • Predictive prefetching •
Prefetch on mouse over Prefetching strategies
@yourtwitter @mgechev • Prefetch visible links • Predictive prefetching •
Prefetch on mouse over Prefetching strategies
@mgechev
@yourtwitter Prefetch visible links $ npm install ngx-quicklink
@yourtwitter Prefetch visible links import { QuicklinkStrategy, QuicklinkModule } from
'ngx-quicklink'; @NgModule({ imports: [RouterModule.forRoot(routes, { preloadingStrategy: QuicklinkStrategy }), QuicklinkModule], exports: [RouterModule] }) export class AppRoutingModule {}
@yourtwitter @mgechev • Prefetch visible links • Predictive prefetching •
Prefetch on mouse over Prefetching strategies
@mgechev
@mgechev
@mgechev Broken window
@mgechev A performance budget is a limit for pages which
the team is not allowed to exceed. Addy Osmani
@yourtwitter Performance Budgets enforces constraints to let you have guarantees
v8.0.0 https://angular.io/guide/build
@mgechev SSR for faster LCP
@mgechev SSR enabled app Node.js Browser API server
@mgechev SSR enabled app https://example.com Node.js Browser API server
@mgechev SSR enabled app https://example.com Node.js Browser API server
@mgechev
@yourtwitter $ ng add @nguniversal/express-engine
@yourtwitter Deploying an SSR app with a single command
twitter.com/ mgechev New in @angular/fire
New in @angular/fire
twitter.com/ mgechev New in @angular/fire
@mgechev @angular/fire @azure/ng-deploy @zeit/ng-deploy angular-cli-ghpages @netlify-builder/deploy
@yourtwitter One more feature to make your apps faster ⚡
@yourtwitter @mgechev • Inline critical CSS • Lazy-load styles •
Inline fonts Removal of blocking resources
@yourtwitter <!DOCTYPE html> <html lang="en"> <head> <link href="icon.css" rel="stylesheet"> <link
href="styles.css" rel="stylesheet"> </head> <body> <div class="bar"> <div class="spinner"> </div> <app-root> </app-root> </div> </body> </html>
@yourtwitter <!DOCTYPE html> <html lang="en"> <head> <link href="icon.css" rel="stylesheet"> <link
href="styles.css" rel="stylesheet"> </head> <body> <div class="bar"> <div class="spinner"> </div> <app-root> </app-root> </div> </body> </html>
@yourtwitter <!DOCTYPE html> <html lang="en"> <head> <link rel="stylesheet" href="styles.css" media="print"
onload="this.media='all'"> <style> div.bar { /* ... */ } .bar .spinner { /* ... */ } </style> </head> <body> ... </body> </html>
@yourtwitter Coming soon ⚡
@yourtwitter @mgechev Summary • Reducing the bundle size • Speeding
up user navigations • Predictive prefetching • SSR for faster LCP • Automated deployment via CLI
@mgechev Thank you! twitter.com/mgechev github.com/mgechev blog.mgechev.com Survey: mgv.io/talk