babelrc node target version 7 is too high

[taranchauhan]

babelrc node target 7 is too high and this causes the UglifyJS plugin in my webpack production config to fail as it can't parse the syntax in lib/index.js during my webpack -p --config webpack.prod.config.js to fail.

This is due to class syntax, default params and pick.js line 2 [prop] punctuation all not being transpiled correctly in manage-state.

There are a few possible workarounds:

1. Remove the node target completely in .babelrc
2. Set uglify property to true See targets.uglify
3. Set node target to sensible version before classes, default params and other unsupported UglifyJS features in manage-state.

Both of these .babelrc configs work.

Solution 1:

{
  "presets": [
    "env",
    "stage-1",
    "react"
  ]
}

Solution 2

{
  "presets": [
    ["env", {
       "targets": {
         "node": 7,
         "uglify": true
       }
    }],
    "stage-1",
    "react"
  ]
}

[penx]

Or use uglifyjs 2/3?

[penx]

Also please refer to this

sindresorhus/ama#446

Not saying I agree with everything written, just worth considering when deciding what to do here