Use 🐊Putout as babel plugin.
In
// input code
const s = 'hi';Out
// output code$ npm install babel-plugin-putout.babelrc.json
{
"plugins": [
["putout", {
"rules": {
"remove-unused-variables": false
}
}]
]
}$ babel --plugins putout script.jsrequire('babel-core').transform('code', {
plugins: ['putout'],
});