babel.config.js
module.exports = {
presets: ['@babel/preset-env'],
plugins: [
["@babel/plugin-transform-class-properties", { "loose": true }],
["@babel/plugin-transform-private-methods", { "loose": true }],
["@babel/plugin-transform-private-property-in-object", { "loose": true }],
'lodash'
],
env: {
test: {
plugins: ['@babel/plugin-transform-runtime']
}
}
};