es6-namedFunctions.js

// A: This is valid JS:
var foobar = {
  foo: function bar() {
    // pass
  }
};

// B: This is valid ES6
let foobar = {
  foo() {
    // pass
  }
};

// C: This is also valid ES6
let foobar = {
  foo: () => {
    // pass
  }
};

// D: This is NOT valid ES6 (at least according to Traceur)
let foobar = {
  foo: bar() {
    // pass
  }
};