requireTrailingComma

Requires an extra comma following the final element of an array or object literal.

Types: Boolean or Object

Values:

• true: validates all arrays and objects
• Object:
  • ignoreSingleValue: allows single property objects and single element arrays to not require a trailing comma
  • ignoreSingleLine: allows objects and arrays on a single line to not require a trailing comma

Example

"requireTrailingComma": true

Valid

var foo = [1, 2, 3,];
var bar = {a: "a", b: "b",}

Valid with ignoreSingleValue

var car = [1];
var dar = {a: "a"};

Valid with ignoreSingleLine

var car = [1, 2, 3];
var dar = {a: "a", b: "b"};

Invalid

var foo = [1, 2, 3];
var bar = {a: "a", b: "b"}