This article was originally published on AI Study Room . For the full version with working code examples and related articles, visit the original post. TypeScript vs JavaScript in 2026: Is JavaScript Still Worth Using? The TypeScript vs JavaScript debate has a clear winner in 2026: TypeScript is the default for any serious project. But JavaScript still has its place. Here's an honest comparison of when to use each — and when sticking with JS is the smarter call. Quick Comparison TypeScript JavaScript Type safety Static typing catches bugs at compile time Learning curve Higher (types, generics, config) IDE support Excellent (autocomplete, refactoring, navigation) Refactoring Safe and fast (compiler validates changes) Documentation Self-documenting (types ARE docs) Build step Required (tsc, esbuild, swc) npm packages Most have types (DefinitelyTyped or built-in) Adoption ~85% of new projects TypeScript — The Modern Standard TypeScript has won.…