You can now choose the latest Node.js v6 version for your apps. This is the Long Term Support version purported to receive LTS maintenance until 2019-04-01, so you should make the change. You will also get a lot of improvements and new features:

• Module loading got 4-times faster
• Updated V8 engine
• Security Improvements
• New ES6 Features teest

Default function parameters

1
2
3
4
5

function multiply(a, b = 1) {
  return a * b
}

multiply(5) // 5

Learn more on the default function parameters.

Rest parameters

1
2
3
4
5
6
7

function fun1(...theArgs) {
  console.log(theArgs.length)
}

fun1()  // 0  
fun1(5) // 1  
fun1(5, 6, 7) // 3

Learn more on the rest parameters.

Spread operator

1
2
3
4
5
6
7
8
9

// before the spread operator
function myFunction(x, y, z) { }
var args = [0, 1, 2]
myFunction.apply(null, args)

// with the spread operator
function myFunction(x, y, z) { }
var args = [0, 1, 2]
myFunction(...args)

Learn more on the spread operator.

Destructuring

1
2
3
4

var x = [1, 2, 3, 4, 5]
var [y, z] = x
console.log(y) // 1  
console.log(z) // 2

Learn more on destructuring.

new.target

1
2
3
4
5
6
7

function Foo() {
  if (!new.target) throw new Error('Foo() must be called with new')
  console.log('Foo instantiated with new')
}

Foo() // throws "Foo() must be called with new"  
new Foo() // logs "Foo instantiated with new"  

Learn more on the new.target.

Proxy

The Proxy object is used to define custom behavior for fundamental operations.

1
2
3
4
5
6
7
8
9
10
11
12

var handler = {
    get: function(target, name){
        return name in target ? target[name] : 37
    }
};

var p = new Proxy({}, handler)
p.a = 1
p.b = undefined

console.log(p.a, p.b) // 1, undefined  
console.log('c' in p, p.c) // false, 37  

Learn more on proxies.

Reflect

Reflect is a built-in object that provides methods for intercept-able JavaScript operations.

Learn more on reflect.

Symbols

A symbol is a unique and immutable data type and may be used as an identifier for object properties.

1

Symbol("foo") === Symbol("foo"); // false  

Learn more on symbols.

How To Use It

To use Node.js v6 for a new application, select it from the the Virtual Machine Type.

Fig 1: Node.js v6 Virtual Machine Type

To switch your existing application to the LTS version make to following environment entry and restart your server.

Fig 1: Change your application to Node.js v6 Virtual Machine Type