Pick a programming language and a topic — variables, functions, classes, conditionals, loops, arrays, strings, error handling, dictionaries, imports, built-in functions, or math — and get a short, commented, copy-ready snippet. Twenty-three languages are covered: Python, JavaScript, TypeScript, Java, C, C++, C#, Go, Rust, PHP, Ruby, Swift, Kotlin, Bash, Lua, Dart, Scala, Perl, Haskell, Elixir, Julia, R, and Zig.
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