babel 6: trying out Immutable.js with node-babel from the command line

.gitignore

node_modules

README.md

The obsolete file .babelrc is now replaced with a babel section in package.json:

  "babel": {
    "presets": [
      "es2015"
    ]
  },

So to run babel-node i.js from the command line, all that is required is:

npm install -g babel-cli
npm install

Later you can add more presets, like

npm install -S babel-preset-stage-0

and the babel section of package.json becomes:

"babel": { "presets": [ "es2015", "stage-0" ] },

i.js

import {Map, List} from 'immutable';

var person1 = Map({
      name: 'John',
        birth: 594687600000,
        phone: '12345678'
});
var person2 = Map({
      name: 'Mary',
        birth: 594689600300,
        phone: '87654321'
});

var phoneBook = List.of(person1, person2);

console.log('person1 phone: ', person1.get('phone'));
console.log('person2 phone: ', person2.get('phone'));
console.log(phoneBook);

phoneBook.forEach(person => {
  var n = person.get('name');
  var p = person.get('phone');
  console.log(n + ': ' + p);
});

package.json

{
  "name": "try-immutable",
  "version": "1.0.0",
  "description": "",
  "main": "i.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "babel": {
    "presets": [
      "es2015"
    ]
  },
  "dependencies": {
    "babel-preset-es2015": "^6.1.18",
    "immutable": "^3.7.5"
  }
}

Revision 2 updates for babel 6.x.x (babel options specified in package.json babel section rather than in .babelrc)