ES7 decorators

.babelrc

{
  "presets": ["es2015"],
  "plugins": ["transform-decorators-legacy"]
}

README.md

1. clone
2. npm install
3. npm run go

main.js

class Product {

    @insurance
    @tax(15)
    cost () {
        return 100;
    }
}

let p = new Product()

console.log(p.cost()) // 165

function insurance (target, key, descriptor) {
    const price = descriptor.value();

    descriptor.value = () => price + 50;
    return descriptor;
}

function tax (taxValue) {
    return (target, key, descriptor) => {
        const price = descriptor.value();

        descriptor.value = () => {
            return (1 + taxValue / 100) * price
        }
        return descriptor;
    }
}

package.json

{
  "name": "Babel-es2016-decorators",
  "version": "1.0.0",
  "description": "",
  "main": "main.js",
  "scripts": {
    "go": "babel main.js | node"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "babel-cli": "^6.6.5",
    "babel-core": "^6.7.2",
    "babel-plugin-transform-decorators-legacy": "^1.3.4",
    "babel-preset-es2015": "^6.6.0"
  }
}