setup openlayers and webpack for development

package.json

{
  "name": "newprojectname",
  "version": "1.0.0",
  "description": "test-map",
  "main": "main.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "build": "webpack --progress -p",
    "watch": "webpack --progress --watch",
    "server": "webpack-dev-server --open"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "ol": "^4.4.2"
  },
  "devDependencies": {
    "webpack": "^3.8.1",
    "webpack-dev-server": "^2.9.3"
  }
}

setup-ol-webpack.sh

# note package.json must first be created
mkdir newprojectname
cd newprojectname
npm init
npm install ol --save
npm install webpack --save-dev
npm install webpack-dev-server --save-dev 

# usage
# npm run build
# npm run watch
# npm run server