Theres tooling for this for webpack described: https://github.com/TypeStrong/ts-loader#faster-builds https://github.com/TypeStrong/ts-loader#faster-builds More

Theres tooling for this for webpack described: https://github.com/TypeStrong/ts-loader#faster-builds https://github.com/TypeStrong/ts-loader#faster-builds More generally though you have two loops one that does transpileOnly and one that doesn't. The latter is your type check process.