Browserify, Babel 6, Gulp - Unexpected token on spread operator
That syntax is an experimental proposed syntax for the future, it is not part of es2015 or react so you'll need to enable it.
npm install --save-dev babel-plugin-transform-object-rest-spreadand add
"plugins": ["transform-object-rest-spread"]into .babelrc alongside your existing presets.
Alternatively:
npm install --save-dev babel-preset-stage-3and use stage-3 in your presets to enable all stage-3 experimental functionality.
I had the same issue, installed stage-2 plugin and modified my package.json file, which looks like below
"babel": { "presets": [ "es2015", "react", "stage-2" ] }
Just as a side note, some text editors (in my case Mac Notes) will contract ... into an elepsis entity, which will fail validation, so be aware of that too...