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Jon Kuperman
@jkup
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Open GitHub
🇬🇧 London
Bloomberg
Profile age: almost 15 years
Updated 6 days ago
1,183 followers • 57 following
Contacts
jon.kuperman@gmail.com
https://jonkuperman.com/
@jonkuperman.com
in/jonkuperman
Organizations
Profile Overview
Global
United Kingdom
Beginner
Adept
Advanced
Expert
Master
Elite
Legend
Global Rank
Legend 2
Persona
Creator
#5,565
#86,587
#5,872
Explore Ranks
Top 3 Languages By Stars
All Languages
Top 5 Repositories
awesome-personal-blogs
3,081
248
updated about 1 year ago • age over 6 years
mastering-chrome-devtools
708
305
updated almost 2 years ago • age over 9 years
JavaScript
77.1%
CSS
17.5%
Pug
4.3%
HTML
1.2%
functional-javascript
392
40
updated about 3 years ago • age over 10 years
javascript-interview
362
67
updated about 3 years ago • age over 8 years
learn-a11y
347
240
updated 6 months ago • age about 9 years
HTML
83.8%
CSS
16.2%
View all 37 repositories
Last Contributions
2025
ecma262
1 PR
+2
-0
HTML
15,479
1,363
28
agendas
1 PR
+1
-1
JavaScript
1,153
199
ecma426
2 PRs
+2
-4
JavaScript
165
22
2024
babel
1 PR
+0
-27
TypeScript
43,745
5,755
444
agendas
~6 PRs
+3
-3
JavaScript
1,153
199
View all contributions
Latest Updates
14 Sep 2025
Followers Count:
1,181
1,183
31 Aug 2025
Followers Count:
1,178
1,181
16 Aug 2025
Followers Count:
1,175
1,178
02 Aug 2025
Followers Count:
1,170
1,175
19 Jul 2025
Followers Count:
1,167
1,170
04 Jan 2025
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