array-map-creation.md

Array / Map creation

Use trailing commas and put short declarations on a single line. Only quote keys when your interpreter complains:

JavaScript

Right:

var a = ['hello', 'world'];
var b = {
  good: 'code',
  'is generally': 'pretty'
};

Wrong:

var a = [
  'hello', 'world'
];
var b = {"good": 'code'
        , is generally: 'pretty'
        };