This is a browser-friendly polyfill for the Node.js path module. Unlike other polyfills like path-browserify, this is not a re-implementation, but a source code copy of the original Node.js path module (state commit 818c10e86d9c44b7e99197a0983ba143754474be). This ensures that win32 is supported properly.

The path module relies upon the process.platform, process.cwd(), and process.env variables. Those are obviously not present in the browser, so this package uses a shim for those. It works as follows:

• process.platform:
  • If globalThis.process.platform is a string, return it.
  • If globalThis.navigator.userAgent indicates a Windows platform, return 'win32'.
  • Otherwise, return 'linux'.
• process.cwd():
  • If globalThis.process.cwd is a function, run it and return its result.
  • If the shim for process.platform is 'win32', return 'C:\\'.
  • Otherwise, return '/'.
• process.env:
  • If globalThis.process.env is an object, return it.
  • Otherwise, return an empty object.

All code except for path.js is licensed under the MIT license.

path.js is licensed under following terms:

Copyright Joyent, Inc. and other Node contributors.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.