Examples with Node.js runtimes and modern ESM support.
The examples presently only run on a Bash-like OS / environment.
Start with yarn installation:
$ yarn installNext, you will need nvm and the following Node.js exact runtimes:
$ nvm install 12.0.0
$ nvm install 14.17.6We require the actual versions to speed up execution of known runtimes.
To see available scenarios:
$ yarn scenarios
different-root
...To run one of the scenarios in various node versions (e.g., 12, 14) and modes (CommonJS CJS, ESM):
# Form
$ yarn scenario [NAME]
[VERSION] [MODE] [OUTPUT]
[VERSION] [MODE] [OUTPUT]
...
# Example
$ yarn scenario different-root
## different-root
The root exported file differs both by Node.js version _and_ mode.
[12.0.0] [CJS] main.js - from package.main on old Node.js
[14.17.6] [CJS] require.js - from package.exports root require match
[14.17.6] [ESM] import.mjs - from package.exports root import match
## dynamic-import
An ESM file is dynamically imported in both CommonJS and ESM code.
[12.0.0] [CJS] error - UnhandledPromiseRejectionWarning: Error: Not supported
[14.17.6] [CJS] import.mjs - ESM file
[14.17.6] [ESM] import.mjs - ESM file
## wrapper
A core CommonJS index file is imported and re-exported by an ESM index file.
[12.0.0] [CJS] index.cjs - core CJS code originally from index.cjs
[14.17.6] [CJS] index.cjs - core CJS code originally from index.cjs
[14.17.6] [ESM] wrapper.mjs - core CJS code originally from index.cjsor just run yarn scenario to run all the scenarios!
Experimental: This project is quite new. We're not sure what our ongoing maintenance plan for this project will be. Bug reports, feature requests and pull requests are welcome. If you like this project, let us know!