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
Predictive Prefetching
Search
Minko Gechev
March 26, 2019
Programming
4
650
Predictive Prefetching
Minko Gechev
March 26, 2019
Tweet
Share
More Decks by Minko Gechev
See All by Minko Gechev
Change the World With Open Source Software
mgechev
0
180
Fast Angular Apps from End to End
mgechev
1
180
The State of Angular
mgechev
1
190
The State of Angular
mgechev
1
360
Software Engineering as a Superpower
mgechev
1
190
Introduction to Angular
mgechev
1
190
Internals of the Angular CLI
mgechev
2
1.3k
The State of Angular
mgechev
1
200
The State of Angular Deployment, SSR, and Prerendering, ng-conf keynote
mgechev
2
2.9k
Other Decks in Programming
See All in Programming
XSLTで作るBrainfuck処理系
makki_d
0
200
Cloudflare Realtime と Workers でつくるサーバーレス WebRTC
nekoya3
0
410
「ElixirでIoT!!」のこれまでとこれから
takasehideki
0
360
Parallel::Pipesの紹介
skaji
2
910
Go Modules: From Basics to Beyond / Go Modulesの基本とその先へ
kuro_kurorrr
0
120
データベースコネクションプール(DBCP)の変遷と理解
fujikawa8
1
260
Bytecode Manipulation 으로 생산성 높이기
bigstark
1
350
Spring gRPC で始める gRPC 入門 / Introduction to gRPC with Spring gRPC
mackey0225
2
510
来たるべき 8.0 に備えて React 19 新機能と React Router 固有機能の取捨選択とすり合わせを考える
oukayuka
2
750
社内での開発コミュニティ活動とモジュラーモノリス標準化事例のご紹介/xPalette and Introduction of Modular monolith standardization
m4maruyama
1
120
Haskell でアルゴリズムを抽象化する / 関数型言語で競技プログラミング
naoya
17
4.7k
カクヨムAndroidアプリのリブート
numeroanddev
0
430
Featured
See All Featured
The MySQL Ecosystem @ GitHub 2015
samlambert
251
13k
Designing for Performance
lara
609
69k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
29
2.7k
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
32
5.9k
Building Adaptive Systems
keathley
43
2.6k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
331
22k
Raft: Consensus for Rubyists
vanstee
140
7k
Rails Girls Zürich Keynote
gr2m
94
14k
Bash Introduction
62gerente
614
210k
Optimising Largest Contentful Paint
csswizardry
37
3.3k
Reflections from 52 weeks, 52 projects
jeffersonlam
351
20k
StorybookのUI Testing Handbookを読んだ
zakiyama
30
5.8k
Transcript
twitter.com/mgechev Predictive Prefetching twitter.com/mgechev github.com/mgechev blog.mgechev.com
twitter.com/mgechev twitter.com/mgechev github.com/mgechev
twitter.com/mgechev Evolution of the web UI Code-splitting Prefetching Guess.js Agenda
twitter.com/mgechev
twitter.com/mgechev
twitter.com/mgechev
twitter.com/mgechev https://medium.com/dev-channel/the-cost-of-javascript-84009f51e99e
twitter.com/mgechev lazy-loading
twitter.com/mgechev - Route-based - Component-based Lazy-loading strategies
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 Pre-fetching
twitter.com/mgechev How do we pick the priorities of the bundles
to pre-fetch?
twitter.com/mgechev
twitter.com/mgechev Lazy-load everything!
twitter.com/mgechev Lazy-load everything! …and let tooling take care of the
rest
twitter.com/mgechev
twitter.com/mgechev
twitter.com/mgechev Route-based splitting
twitter.com/mgechev $ npm run build # For Angular CLI $
serve -s dist
twitter.com/mgechev Let’s emulate *really* bad conditions
twitter.com/mgechev
twitter.com/mgechev
twitter.com/mgechev Let’s take a look at the GA graph
twitter.com/mgechev
twitter.com/mgechev
twitter.com/mgechev - Main & Settings in same chunk ‣ Update
of the source code - Pre-fetch FAQ when the user is at Home Possible optimizations
twitter.com/mgechev
twitter.com/mgechev early preview
twitter.com/mgechev $ vim webpack.config.js
twitter.com/mgechev const { GuessPlugin } = require('guess-webpack'); // ... plugins:
[ // ... new GuessPlugin({ GA: 'XXXXXX' }) ] // ...
twitter.com/mgechev
twitter.com/mgechev
twitter.com/mgechev How it works…
twitter.com/mgechev - guess-ga - guess-parser - guess-webpack Packages
twitter.com/mgechev guess-ga Fetching structured data from Google Analytics
twitter.com/mgechev guess-parser Gets metadata by statically analyzing our app
twitter.com/mgechev guess-webpack Set of webpack plugins which automate the build
twitter.com/mgechev /a /a/a /a/b /b /b/a /
twitter.com/mgechev Markov Chain / /a /a/:id /b /b/a / 0
0.3 0 0.7 0 /a 0 0 0.9 0.1 0 /a/:id 0 1 0 0 0 /b 0 0 0 0 1 /b/a 0 1 0 0 0 /a /a/a /a/b /b /b/a /
twitter.com/mgechev /a /a/a /a/b /b /b/a / Activity: / /a
/a/:id /b /b/a / 0 0.3 0 0.7 0 /a 0 0 0.9 0.1 0 /a/:id 0 1 0 0 0 /b 0 0 0 0 1 /b/a 0 1 0 0 0 Probability threshold: 0.5
twitter.com/mgechev /a /a/a /a/b /b /b/a / Activity: / /a
/a/:id /b /b/a / 0 0.3 0 0.7 0 /a 0 0 0.9 0.1 0 /a/:id 0 1 0 0 0 /b 0 0 0 0 1 /b/a 0 1 0 0 0 Probability threshold: 0.5
twitter.com/mgechev /a /a/a /a/b /b /b/a / Activity: / /a
/a/:id /b /b/a / 0 0.3 0 0.7 0 /a 0 0 0.9 0.1 0 /a/:id 0 1 0 0 0 /b 0 0 0 0 1 /b/a 0 1 0 0 0 Probability threshold: 0.5
twitter.com/mgechev / /a /a/:id /b /b/a / 0 0.3 0
0.7 0 /a 0 0 0.9 0.1 0 /a/:id 0 1 0 0 0 /b 0 0 0 0 1 /b/a 0 1 0 0 0 /a /a/a /a/b /b /b/a / Activity: - Download b.bundle.js Probability threshold: 0.5
twitter.com/mgechev /a /a/a /a/b /b /b/a / Activity: - Download
b.bundle.js / /a /a/:id /b /b/a / 0 0.3 0 0.7 0 /a 0 0 0.9 0.1 0 /a/:id 0 1 0 0 0 /b 0 0 0 0 1 /b/a 0 1 0 0 0 Probability threshold: 0.5
twitter.com/mgechev /a /a/a /a/b /b /b/a / Activity: - Download
b.bundle.js / /a /a/:id /b /b/a / 0 0.3 0 0.7 0 /a 0 0 0.9 0.1 0 /a/:id 0 1 0 0 0 /b 0 0 0 0 1 /b/a 0 1 0 0 0 Probability threshold: 0.5
twitter.com/mgechev /a /a/a /a/b /b /b/a / / /a /a/:id
/b /b/a / 0 0.3 0 0.7 0 /a 0 0 0.9 0.1 0 /a/:id 0 1 0 0 0 /b 0 0 0 0 1 /b/a 0 1 0 0 0 Activity: - Download b.bundle.js - No action Probability threshold: 0.5
twitter.com/mgechev /a /a/a /a/b /b /b/a / / /a /a/:id
/b /b/a / 0 0.3 0 0.7 0 /a 0 0 0.9 0.1 0 /a/:id 0 1 0 0 0 /b 0 0 0 0 1 /b/a 0 1 0 0 0 Activity: - Download b.bundle.js - No action Probability threshold: 0.5
twitter.com/mgechev /a /a/a /a/b /b /b/a / / /a /a/:id
/b /b/a / 0 0.3 0 0.7 0 /a 0 0 0.9 0.1 0 /a/:id 0 1 0 0 0 /b 0 0 0 0 1 /b/a 0 1 0 0 0 Activity: - Download b.bundle.js - No action Probability threshold: 0.5
twitter.com/mgechev /a /a/a /a/b /b /b/a / / /a /a/:id
/b /b/a / 0 0.3 0 0.7 0 /a 0 0 0.9 0.1 0 /a/:id 0 1 0 0 0 /b 0 0 0 0 1 /b/a 0 1 0 0 0 Activity: - Download b.bundle.js - No action - Download a.bundle.js Probability threshold: 0.5
twitter.com/mgechev - https://mgv.io/dd-bundling - https://mgv.io/cost-of-js - https://mgv.io/predictive-fetching - https://mgv.io/guess References
Thank you! twitter.com/mgechev github.com/mgechev blog.mgechev.com