This replaces regexp literals and constructors that contain the unicode flag at compile time or at runtime if needed.
npm install --save-dev babel-plugin-transform-unicode-regexp-runtime
.babelrc
{
"plugins": [ "transform-unicode-regexp-runtime" ]
}
babel --plugins transform-unicode-regexp-runtime script.js
require('@babel/core').transform('code', {
plugins: [ 'transform-unicode-regexp-runtime' ],
})