Using create react app, and having ES6 dependencies

javascript reactjs uglifyjs create-react-app

You can't use ES6 code with create-react-app, or most build systems.

npm packages shouldn't result in ES6 code because of existing tooling, and to a lesser extent, older node versions.

To set up your package, assuming the ES6 code is in the src directory:

npm install --save-dev babel-core babel-cli babel-preset-latest

.babelrc

{  "presets": ["latest"]}

package.json

  "main": "./lib",  "scripts": {    "build": "babel src --out-dir lib"  }

Then do npm run build before publishing.

Create a .gitignore with 'lib' in it, and a .npmignore that's empty. The .npmignore needs to exist.

You can run your tests on the src directory (or lib, doesn't much matter).

CodeHunter