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API Design
10% questions validées
1 test sessionLast activity : Aug 18, 2023
React
6% questions validées
1 test sessionLast activity : Nov 17, 2021
Javascript
0% questions validées
1 test sessionLast activity : Oct 17, 2021
SQL
6% questions validées
1 test sessionLast activity : Oct 17, 2021
Git
5% questions validées
1 test sessionLast activity : Oct 16, 2021
Java
1% questions validées
1 test sessionLast activity : Oct 16, 2021
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Daily Challenge

9 January 2026
One question per day to improve your general code knowledge!
Today :Ruby on Rails #3/15
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Rails
Ruby on Rails
daily challenge
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Last leaderboard calculation: on 11 Jan 2026 at 01:41:19