This is a simple repository to demonstrate using TypeScript custom type
definitions (.d.ts files) to help transition a JavaScript Node project to
TypeScript.
Unfortunately, there is a TypeScript issue that prevents the TypeScript compiler from emitting custom type definitions from the input files to the output directory.
npm install
npm test
You will notice that npm test exits with an error because the script attempts
to build the test TypeScript project, which references the src TypeScript
project. The test project depends on the custom type definition in src,
which the compiler does not emit to the src output directory, lib, so
test fails to compile.
rm -rf lib test-lib
npm run test_with_types
The test_with_types script includes a step that copies the custom type
definition files from src to lib. Now you will see that the the project
builds correctly. However, this build requires an explicit compilation of
src, then copying the .d.ts files, then compiling test, which defeats
the purpose of project references
with the -b flag for incremental builds.