Courses / TypeScript
14. isolatedModules
The isolatedModules compiler flag and why it's useful for incremental transpilation and tooling compatibility.
JavaScript (TypeScript compiler flag ecosystem)
isolatedModules
A compiler mode that ensures each file can be transpiled independently without relying on cross-file type information.
"I want my bundler or transpiler to compile one file at a time and never need to read the rest of the project."
isolatedModules is a TypeScript/tsc flag that enforces rules so every module compiles in isolation (no type-only global inference or emit-dependent features), which makes incremental transpilers and tools safe to run per-file.
"I want my bundler or transpiler to compile one file at a time and never need to read the rest of the project."
isolatedModules is a TypeScript/tsc flag that enforces rules so every module compiles in isolation (no type-only global inference or emit-dependent features), which makes incremental transpilers and tools safe to run per-file.