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Tony St Pierre
Tony St Pierre

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7 Function Shapes That Make JavaScript and TypeScript Code Easier to Read, Use, and Trust

Code that runs is common. Code that teaches is rare.

Most developers write to fix problems, while the best write to reveal intent.
This isn't just a pattern guide. It's a mental model for writing code that speaks, behaves consistently, and stands independently, even in silence.

I walk through the seven function shapes that define clean, honest code in JS and TS:

  • Pure transformation
  • Runtime type validation
  • Side-effect triggers
  • Async tasks
  • Factory patterns
  • Function composition
  • Error-safe execution

No hype. Just structure, clarity, and choices that hold up.
Let your code do what Stoics do, mean what it says, and nothing more.
Read the full piece on Substack

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