JavaScript with types, catching bugs before they ship
TypeScript is a typed superset of JavaScript that adds static type checking, catching a category of bugs wrong argument types, missing properties, incorrect API responses at build time instead of in production. It compiles down to plain JavaScript, so it runs anywhere JavaScript does.
As a codebase grows past a certain size, untyped JavaScript makes refactoring genuinely risky a rename or a shape change can silently break something three files away with no compiler to catch it. TypeScript turns that class of error into an immediate, visible one.
TypeScript is our default for anything beyond a small script frontend and backend alike because the confidence it gives during refactoring and the self-documenting nature of typed interfaces pay for themselves quickly on any project expected to be maintained past launch.