babel.config.js
module.exports = (api, targets) => {
// https://babeljs.io/docs/en/config-files#config-function-api
const isTestEnv = api.env('test');
return {
babelrc: false,
ignore: ['./node_modules'],
presets: [
[
'@babel/preset-env',
{
loose: true,
modules: isTestEnv ? 'commonjs' : false,
targets: isTestEnv ? { node: 'current' } : targets,
},
],
],
plugins: [
'@babel/plugin-transform-react-jsx',
['@babel/plugin-transform-typescript', { isTSX: true }],
],
};
};