How do I make a “public static field” in an ES6 class?

Question

I\'m making a Javascript class and I\'d like to have a public static field like in Java. This is the relevant code:

export default class Agent {
    CIRCLE:          


        

Answer 1

In current drafts of ECMAScript 6 (as of February 2015), all class properties must be methods, not values (note in ECMAScript a "property" is similar in concept to an OOP field, except the field value must be a Function object, not any other value such as a Number or Object).

You can still specify these using traditional ECMAScript constructor property specifiers:

 class Agent {
 }
 Agent.CIRCLE = 1;
 Agent.SQUARE = 2;
 ...