module.exports = function (api) { api.cache(false); return { parserOpts: { strictMode: true, }, presets: [ '@babel/preset-typescript', [ '@babel/preset-env', { targets: { browsers: ['chrome >= 66', 'firefox >= 68'], }, }, ], '@babel/preset-react', ], plugins: [ '@babel/plugin-transform-runtime', '@babel/plugin-proposal-class-properties', '@babel/plugin-proposal-object-rest-spread', '@babel/plugin-proposal-optional-chaining', '@babel/plugin-proposal-nullish-coalescing-operator', ], }; };