How do we use a babel plugin that is not already accepted in a babel repository? I had trouble finding this answer reading through the babel plugin documentation.
We are interested in writing a babel plugin for for...in loops to address a bug in ios9 (ios9 Safari miscalculating sum). Although we would be happy to contribute it to the babel community, I was also wondering if it doesn't get accepted or isn't ready for general consumption, how to start using and testing it locally.
It's possible to make use of custom babel plugins that you can host on git.
You can refer to https://github.com/jamiebuilds/babel-handbook/blob/master/translations/en/plugin-handbook.md for learning how you can develop and test your babel plugin locally.
Once you have developed the plugin, you can add a dependency for it in your project's package.json file.
Note that if you plan to make the plugin repository private, you'd have to create a personal access token (for Github) to allow npm to fetch repository contents. In that case, the example entry in your package.json file would be as follows:
"babel-plugin-transform-for-of-loop": "git+https://{token}:x-oauth-basic@github.com/username/babel-plugin-transform-for-of-loop"
Whatever package name that you pick for your plugin, you will need to add a reference for it in the .babelrc file. For this example, it would be as follows:
{
...
"plugins": [
"babel-plugin-transform-for-of-loop"
]
}
With that done, you should simply run npm install and your plugin would become active for your project.
