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
How to choose the best npm module for your team?
Search
Sota Sugiura
November 23, 2018
Programming
9
610
How to choose the best npm module for your team?
2018/11/23
Presented at NodeFest 2018@Tokyo
https://nodefest.jp/2018/
Sota Sugiura
November 23, 2018
Tweet
Share
More Decks by Sota Sugiura
See All by Sota Sugiura
内製したSlack Appで頑張るIncident Response@Waroom Meetup #1 / Incident Response with Slack App in 10X
sota1235
0
1.7k
20220926_セキュリティチームの今_for_Drs._Prime_公開用.pdf
sota1235
0
150
再発防止策を考える技術 / #phpconsen
sota1235
10
3.9k
Realtime Database for high traffic production application
sota1235
7
4.1k
Road to migrate JP Web as a microservice
sota1235
4
1.7k
インターフェース再入門 / Think Interface again
sota1235
6
11k
再発防止策を考える技術 #phpconfuk_rej
sota1235
1
1.3k
Update around Firebase #io18
sota1235
3
4.4k
Introduction for sonarwhal
sota1235
0
600
Other Decks in Programming
See All in Programming
Serena MCPのすすめ
wadakatu
4
900
2分台で1500examples完走!爆速CIを支える環境構築術 - Kaigi on Rails 2025
falcon8823
3
3.2k
フロントエンド開発に役立つクライアントプログラム共通のノウハウ / Universal client-side programming best practices for frontend development
nrslib
7
3.9k
AIで開発生産性を上げる個人とチームの取り組み
taniigo
0
130
ソフトウェア設計の実践的な考え方
masuda220
PRO
3
490
CSC509 Lecture 01
javiergs
PRO
1
430
階層構造を表現するデータ構造とリファクタリング 〜1年で10倍成長したプロダクトの変化と課題〜
yuhisatoxxx
3
920
10年もののAPIサーバーにおけるCI/CDの改善の奮闘
mbook
0
780
Local Peer-to-Peer APIはどのように使われていくのか?
hal_spidernight
2
450
Advance Your Career with Open Source
ivargrimstad
0
340
CSC509 Lecture 05
javiergs
PRO
0
300
Pythonスレッドとは結局何なのか? CPython実装から見るNoGIL時代の変化
curekoshimizu
4
1.3k
Featured
See All Featured
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
49
3.1k
How To Stay Up To Date on Web Technology
chriscoyier
791
250k
Faster Mobile Websites
deanohume
310
31k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
231
53k
Producing Creativity
orderedlist
PRO
347
40k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
252
21k
Stop Working from a Prison Cell
hatefulcrawdad
271
21k
VelocityConf: Rendering Performance Case Studies
addyosmani
332
24k
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
tammyeverts
9
580
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
15
1.7k
Intergalactic Javascript Robots from Outer Space
tanoku
273
27k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
285
14k
Transcript
How to choose the best npm module for your team?
@sota1235
Title @sota1235 Sota Sugiura Backend Engineer@Mercari, Inc. “My dream is
to be JavaScript”
Title @sota1235 Sota Sugiura Backend Engineer@Mercari, Inc. “My dream is
to be JavaScript”
Q. How many npm module are you using?
None
197
197 = 197 decisions
Q. Can you explain a reason behind every npm module
you chose?
Let’s think! https://jp.freeimages.com/photo/thinking-1387695
http://www.modulecounts.com/
It’s like a jewelry box! Let’s choose!
Wait!! Can you explain the Goal you set?
Using a npm module is not Goal Goal is to
solve the problem
Define the Goal Think about the candidates Decide what to
use Solve the problem
Define the Goal Think about the candidates Decide what to
use Solve the problem
Define the Goal • There are still many problems to
solve • We always use some tool to solve that problem
Define the Goal Think about the candidates Decide what to
use Solve the problem
Search a npm module • www.npmjs.com • awesome-* pages •
Recommendation from other engineers • Googling
Define the Goal Think about the candidates Decide what to
use Solve the problem
Select from candidates • When you have multiple choices, you
need to compare them • There are a lot of points to do that
• Star count • API design • Size of community
• Performance • Documentation • Test coverage • Quality of code • and so on...
https://jp.freeimages.com/photo/cat-1537181
Again, the Goal is... • Let’s decide the priority by
thinking about the Goal • If you will use it for prototyping, not necessary to mind test coverage • If you will use it for only development environment, file size won’t be a problem
OK, let’s use that!
Wait!! Did you think about the cost to maintain that?
Using a npm module is not free :( • It
takes time to maintain • Managing vulnerability/version • If maintenance stops, you will need to fork it
Think about Pros/Cons everytime • We SHOULD think about Pros/Cons
everytime • What is the benefit to use that? • What is the problem to use that? • If Pros won, let’s use that!
Define the Goal Think about the candidates Decide what to
use Solve the problem
None
Q. Can you explain a reason behind every npm module
you chose?
Conclusion
Make it better! • You should be able to explain
the reason • It’ll be a good experience even if you made a wrong decision
Thank you @sota1235 JavaScript lover