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That one website that gives you a quick tour of any programming language in one page

Why it's the pick

Each page is one long, commented code file that walks you through a language's syntax from top to bottom, so you can get the gist of Python, Go, Rust or Bash in a few minutes. Covers hundreds of languages and tools; it's written by volunteers, so some pages are deeper than others.

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2 good alternatives

Devhints devhints.io Short cheat sheets for languages, tools and frameworks FreeNo signup Link checked Oct 9
QuickRef.ME quickref.me Quick reference cards for languages, commands and apps FreeNo signup Link checked Oct 9

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