README.md

@babel/preset-stage-1

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information at issue #7770, but the TL;DR is that it's causing more harm than convenience in that the preset is always out of date, each change is usually going to require a major version bump and thus people will be behind, and it encouraged too many people to opt-in to too many proposals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: [
      // ...
    ]
  };
};