Why We Are Moving to TypeScript


After years of resistance, our engineering team has decided to migrate our entire codebase to TypeScript. The decision wasn’t made lightly. JavaScript’s flexibility allowed us to move fast in the early days, but as our application grew to over 100,000 lines of code, that same flexibility became a liability.

“Undefined is not a function” errors in production were costing us real money. By adopting TypeScript, we aren’t just adding types; we are adding a contract between our services. The developer experience improvements—intellisense, refactoring safety, and self-documenting code—have already paid for the migration effort.

The Verdict vs The Competition

In this landscape, Why We Are Moving to TypeScript stands out because it focuses on execution rather than just promises. Compared to its direct competitors, it offers a more cohesive experience, though it may command a higher learning curve or price point.

Pros

  • Innovation: Pushes the boundaries of what is possible.
  • Integration: Works seamlessly within its ecosystem.
  • Performance: Delivers where it counts.

Cons

  • Price: Early adopter tax is real.
  • Availability: supply constraints are expected.

“Technology is best when it brings people together.”

Final Thoughts

We are cautiously optimistic. The foundation is solid, and the roadmap looks promising. We will continue to test this over the coming months and update this review with long-term findings.