Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Outdated browser detection with Browserslist

Avatar for Salahutdinov Dmitry Salahutdinov Dmitry
March 23, 2019
Programming
350
1

Outdated browser detection with Browserslist

Check the outdated browser in the same way on both: front-end and back-end

Avatar for Salahutdinov Dmitry

Salahutdinov Dmitry

March 23, 2019

More Decks by Salahutdinov Dmitry

See All by Salahutdinov Dmitry
Fullstack monitoring
Avatar for Salahutdinov Dmitry dsalahutdinov
0
240
Product metrics for developers
Avatar for Salahutdinov Dmitry dsalahutdinov
0
73
Kubernetes-native Ruby development
Avatar for Salahutdinov Dmitry dsalahutdinov
0
490
Business Impact Driven Development
Avatar for Salahutdinov Dmitry dsalahutdinov
0
370
Optimistic UI with Logux & Ruby (RubyRussia)
Avatar for Salahutdinov Dmitry dsalahutdinov
0
390
bidd.pdf
Avatar for Salahutdinov Dmitry dsalahutdinov
0
300
Optimistic UI with Logux & Ruby
Avatar for Salahutdinov Dmitry dsalahutdinov
0
270
Optimistic UI and live updates with Logux & Ruby
Avatar for Salahutdinov Dmitry dsalahutdinov
1
2k

Other Decks in Programming

See All in Programming
新規プロダクトを高速で生み出すハーネスエンジニアリング
Avatar for Ryohei Ikegami seanchas116
14
6.5k
~ 秘伝のタレ化した『神スプシ』と戦う ~ 関数型パラダイムで壊れない仕組みへ
Avatar for ほりしょー h0r15h0
1
140
OCRを使ってゲームのアイテムをデータ化する
Avatar for Kishikawa Katsumi kishikawakatsumi
0
120
関係性から理解する"同一性"の型用語たち
Avatar for pvcresin pvcresin
2
590
Composerを使ったサプライチェーン攻撃の様子を眺めてみる #phpstudy
Avatar for hideki kinjyo o0h
PRO
2
170
ECR拡張スキャンでSBOMを収集して サプライチェーン攻撃の影響調査を 爆速で終わらせてみた
Avatar for アキキー | Akihisa Ikeda akihisaikeda
2
200
Moments When Things Go Wrong
Avatar for Aurimas Liutikas aurimas
3
120
TypeSpec で繋ぐ複数プロダクトの型安全
Avatar for Mitsui maroon8021
1
260
Transactional Change Stream Processing With Debezium and Apache Flink
Avatar for Gunnar Morling gunnarmorling
1
140
iOS26時代の新規アプリ開発
Avatar for 野瀬田　裕樹 yuukiw00w
0
210
デフォルト運用のCodeRabbit、1年で何が変わったか / How CodeRabbit Changed Our Code Review in 1 Year
Avatar for bake0937 bake0937
1
110
タクシーアプリ『GO』の バックエンド開発のおける AI利活用と若者のすべて
Avatar for Kazuhiko Yamashita pyama86
3
1.7k

Featured

See All Featured
How To Stay Up To Date on Web Technology
Avatar for Chris Coyier chriscoyier
790
250k
A Tale of Four Properties
Avatar for Chris Coyier chriscoyier
163
24k
The Art of Programming - Codeland 2020
Avatar for Erika Heidi erikaheidi
57
14k
Build your cross-platform service in a week with App Engine
Avatar for Jose L jlugia
234
18k
Marketing Yourself as an Engineer | Alaka | Gurzu
Avatar for Gurzu gurzu
0
200
Winning Ecommerce Organic Search in an AI Era - #searchnstuff2025
Avatar for Aleyda Solis aleyda
1
2k
Balancing Empowerment & Direction
Avatar for Lara Hogan lara
6
1.1k
Building Flexible Design Systems
Avatar for Yesenia Perez-Cruz yeseniaperezcruz
330
40k
Lessons Learnt from Crawling 1000+ Websites
Avatar for Charles Meaden charlesmeaden
PRO
1
1.3k
Why Your Marketing Sucks and What You Can Do About It - Sophie Logan
Avatar for Sophie Logan marketingsoph
0
160
The Illustrated Guide to Node.js - THAT Conference 2024
Avatar for David Neal reverentgeek
1
360
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
Avatar for Tammy Everts tammyeverts
55
3.4k

Transcript

  1. LT: Outdated Browser Detection Dmitry Salahutdinov

  2. Why?

  3. None

  4. Frontend Pareto principle 10 % Uses actual browser 90 %

    10 % Old browsers 90 % Actual browsers usage Money spend for supporting browsers
  5. None

  6. Frontend headache

  7. Converts rules into list of browsers

  8. None

  9. Mozilla/5.0 (Windows NT 10.0; rv:54.0) Gecko/20100101 Firefox/54.0 ❌ Matches UA

    string with the list

  10. Js is not supported?

  11. Matches UA string with the list

  12. Frontend Backend Share the only one config

  13. Single project Frontend Backend RAILS_ROOT/browsers.json

  14. Separated frontend

  15. Gets back to frontend for browsers list

  16. Gets back to frontend for browsers list

  17. Caching the result

  18. dziękuję #❤ @dsalahutdinov1 @dsalahutdinov https://dev.to/amplifr https://amplifr.com https://dev.to/amplifr/outdated-browser-detection-with-browserslist-10co browserslist_useragent gem