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
120
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
86
The State of Angular
mgechev
1
160
The State of Angular
mgechev
1
220
Software Engineering as a Superpower
mgechev
1
110
Introduction to Angular
mgechev
1
120
Internals of the Angular CLI
mgechev
2
1.1k
The State of Angular
mgechev
1
130
The State of Angular Deployment, SSR, and Prerendering, ng-conf keynote
mgechev
2
2.7k
The Future of the Front-End Frameworks
mgechev
2
270
Other Decks in Programming
See All in Programming
[技育CAMPアカデミア]アイディアを形に!【超入門】スマホアプリ開発〜リリースまでの流れをご紹介
teamlab
PRO
0
350
はてなにおける CSS Modules、及び CSS Modules に足りないもの / CSS Modules in Hatena, and CSS Modules missing parts
mizdra
4
580
CA.swift19 恋するAIアプリ開発の裏側
oskmr
0
340
FigmaとPHPで作る1ミリたりとも表示崩れしない最強の帳票印刷ソリューション
ttskch
39
18k
データアナリストが行うDatabricksを活用したETLの自動化事例
shinoa
0
260
SpringBoot+MyBatisで例外が出たときどこを見るか
syukai
0
110
Prepare for Jakarta EE 11 - Performance and Developer Productivity
ivargrimstad
0
480
スクラムチームと認知負荷 - ニフティのスクラムトーク Vol2. / NIFTY Tech Talk #18
niftycorp
PRO
1
120
Tailwind CSSを本気でカスタマイズする方法
fsubal
5
1.2k
今、知っておきたい! 生成AIエージェントの世界
elith
3
340
脱・初心者!脱・マネコン!AWS CDKを使ってみませんか!?
har1101
0
300
1인 개발자로 행복하게 살기 - GDG 송도 헬로월드 2024
benjaminkim
1
5.6k
Featured
See All Featured
Thoughts on Productivity
jonyablonski
57
3.8k
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
39
4.4k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
240
1.2M
Fantastic passwords and where to find them - at NoRuKo
philnash
36
2.5k
Teambox: Starting and Learning
jrom
128
8.4k
StorybookのUI Testing Handbookを読んだ
zakiyama
11
4.6k
5 minutes of I Can Smell Your CMS
philhawksworth
199
19k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
501
140k
Gamification - CAS2011
davidbonilla
76
4.6k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
321
20k
Git: the NoSQL Database
bkeepers
PRO
422
63k
Automating Front-end Workflow
addyosmani
1355
200k
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