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babel.config.js
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babel.config.js
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/* eslint global-require: off, import/no-extraneous-dependencies: off */
const developmentEnvironments = ["development", "test"];
const developmentPlugins = [require("@babel/plugin-transform-runtime")];
const productionPlugins = [
require("babel-plugin-dev-expression"),
// babel-preset-react-optimize
require("@babel/plugin-transform-react-constant-elements"),
require("@babel/plugin-transform-react-inline-elements"),
require("babel-plugin-transform-react-remove-prop-types"),
];
module.exports = (api) => {
// See docs about api at https://babeljs.io/docs/en/config-files#apicache
const development = api.env(developmentEnvironments);
return {
presets: [
// @babel/preset-env will automatically target our browserslist targets
require("@babel/preset-env", {
useBuiltins: "entry",
corejs: 3,
}),
require("@babel/preset-typescript"),
[require("@babel/preset-react"), { development }],
],
plugins: [
// Stage 1
require("@babel/plugin-proposal-export-default-from"),
require("@babel/plugin-proposal-logical-assignment-operators"),
[require("@babel/plugin-proposal-optional-chaining"), { loose: false }],
[
require("@babel/plugin-proposal-pipeline-operator"),
{ proposal: "minimal" },
],
[
require("@babel/plugin-proposal-nullish-coalescing-operator"),
{ loose: false },
],
require("@babel/plugin-proposal-do-expressions"),
// Stage 2
require("@babel/plugin-proposal-function-sent"),
require("@babel/plugin-proposal-export-namespace-from"),
require("@babel/plugin-proposal-throw-expressions"),
// Stage 3
require("@babel/plugin-syntax-dynamic-import"),
require("@babel/plugin-syntax-import-meta"),
require("@babel/plugin-proposal-json-strings"),
...(development ? developmentPlugins : productionPlugins),
],
};
};