dailyprog
Write one small function a day and keep your solving streak going
dailyprog publishes one small programming puzzle at midnight UTC: a prompt, a function signature and worked examples. You write the function in the browser editor, run it against the visible examples as often as you like, then submit. The server checks it against hidden tests, and you get five attempts per day.
Free · No login · Browser · New puzzle daily · Intermediate

About dailyprog
It builds a steady habit of small, correct solutions. It suits programmers who know at least one language well.
It is free and open source. You can play without an account. Signing in with GitHub, GitLab or Codeberg, or with a recovery phrase, keeps your streak across devices. Supported languages include JavaScript, Python, C, Go, Clojure, APL, Lua and Ruby.
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Tips and discussion
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