Why TypeScript Isn’t Always the Right Choice for Your Startup Project

Suraj Singh Bisht
3 min readSep 8, 2023

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Photo by Artem Sapegin on Unsplash

In the fast-paced world of startup development, making the right technology choices can be crucial to achieving your goals. While TypeScript has gained popularity for its advantages, blindly adopting it for every project may not always be the best idea.

As someone who has spent a good amount of time working with both JavaScript and TypeScript in various settings, including startups, I’d like to share my perspective on why TypeScript might not be the silver bullet for every situation.

False Sense of Progress

TypeScript can create a deceptive illusion of progress. Developers may become engrossed in adding type annotations and adhering to strict rules, which might not necessarily translate into a shippable product. While TypeScript offers type safety, it doesn’t guarantee the quality or completeness of your codebase.

Example: Spending hours perfecting type declarations while core functionality remains incomplete.

Increased Complexity

TypeScript often results in more lines of code, increased indirection, and a complex code structure. While it can make the codebase safer, it can also make it harder to read and understand. The complexity of the code structure may outweigh the benefits of type safety.

Example: Over-engineering a simple function with excessive type annotations.

Velocity Matters

In a startup, velocity is often paramount. TypeScript, with its additional type-checking overhead, can slow down developers compared to JavaScript.

Example: Delivering features slower due to the time spent on type-related tasks.

Tech Debt

While TypeScript can help manage tech debt over time, it can become a heavier burden if project specifications, tech stacks, or architecture change midway through development.

Example: Refactoring a significant portion of your TypeScript codebase when project requirements evolve

Third-Party Integration Hassles

Working with third-party libraries that lack TypeScript support can be challenging. It can lead to unproductive work, including writing type definitions for existing JavaScript code.

Example: Spending time writing type definitions for a non-TS library before using it in your project.

Edge Cases and Debugging

TypeScript may struggle to handle the 5% of cases where it can’t infer types correctly or where React components lead to rendering loops. Debugging in such scenarios can be time-consuming.

Example: Hours spent rearranging code due to TypeScript’s limitations in handling a specific use case.

Opinions from other developers echo these concerns:

  • “Learning TypeScript takes longer, and it often feels like a wild goose chase.”
  • “TypeScript can add unnecessary complexity when debugging.”
  • “My development workflow is slowed down by the extra code TypeScript requires.”

Conclusion

TypeScript is a valuable tool in the developer’s toolbox, but it’s essential to evaluate its suitability for each project in a startup environment. Rather than blindly choosing TypeScript, consider the specific needs and goals of your project. TypeScript can shine in some scenarios but might not be the best fit for others. Make informed decisions based on your project’s requirements to ensure you maintain the velocity and efficiency crucial for startup success

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