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index.js
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index.js
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export default function() {
throw new Error(`
As of v7.0.0-beta.52, we've decided to remove
the official Babel Stage presets. You can find more information
at issue #7770: https://github.com/babel/babel/issues/7770, but
the TL;DR is that it's causing more harm than convenience in that
the preset is always out of date, each change is usually going to
require a major version bump and thus people will be behind,
and it encouraged too many people to opt-in to too many proposals
that they didn't intend to. This is intended to be the last publish
of "@babel/preset-stage-1"
If you want the same configuration as before:
{
"plugins": [
// Stage 1
"@babel/plugin-proposal-export-default-from",
"@babel/plugin-proposal-logical-assignment-operators",
["@babel/plugin-proposal-optional-chaining", { "loose": false }],
["@babel/plugin-proposal-pipeline-operator", { "proposal": "minimal" }],
["@babel/plugin-proposal-nullish-coalescing-operator", { "loose": false }],
"@babel/plugin-proposal-do-expressions",
// Stage 2
["@babel/plugin-proposal-decorators", { "legacy": true }],
"@babel/plugin-proposal-function-sent",
"@babel/plugin-proposal-export-namespace-from",
"@babel/plugin-proposal-numeric-separator",
"@babel/plugin-proposal-throw-expressions",
// Stage 3
"@babel/plugin-syntax-dynamic-import",
"@babel/plugin-syntax-import-meta",
["@babel/plugin-proposal-class-properties", { "loose": false }],
"@babel/plugin-proposal-json-strings"
]
}
We recommend that make your own presets to use across projects for
reusability. This can be as simple as exporting a function that returns your config/array of plugins.
module.exports = function() {
return {
plugins: [
// ...
]
};
};
`);
}