Javascript Enum

An enum data type that is based on the javascript symbol primitive type. Using symbol values ensures type safety of the enum as each symbol value is guaranteed by javascript to be unique.

Example:

const color = new Enum('RED', 'BLUE')

color.RED.toString() // 'Symbol(RED)'
color.getName(color.RED) // 'RED'
color.size // 2
color.values() // Symbol(RED), Symbol(BLUE)
color.toString() // 'RED,BLUE'
color.valueOf('RED') // Symbol(RED)

Plunker demo