49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
module.exports.babelLoaderConfig = ({ latestBuild }) => {
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if (latestBuild === undefined) {
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throw Error("latestBuild not defined for babel loader config");
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}
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return {
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test: /\.m?js$|\.tsx?$/,
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use: {
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loader: "babel-loader",
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options: {
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presets: [
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!latestBuild && [
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require("@babel/preset-env").default,
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{ modules: false },
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],
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[
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require("@babel/preset-typescript").default,
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{
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jsxPragma: "h",
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},
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],
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].filter(Boolean),
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plugins: [
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// Part of ES2018. Converts {...a, b: 2} to Object.assign({}, a, {b: 2})
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[
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"@babel/plugin-proposal-object-rest-spread",
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{ loose: true, useBuiltIns: true },
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],
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// Only support the syntax, Webpack will handle it.
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"@babel/syntax-dynamic-import",
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[
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"@babel/transform-react-jsx",
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{
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pragma: "h",
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},
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],
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[
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require("@babel/plugin-proposal-decorators").default,
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{ decoratorsBeforeExport: true },
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],
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[
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require("@babel/plugin-proposal-class-properties").default,
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{ loose: true },
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],
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],
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},
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},
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};
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};
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