use ES6 syntax

[AlbyIanna]

https://github.com/bcmi-labs/create-plugin-communication/blob/d63b22a9073defb9c7663ea849ee013de09b08a0/src/readMessages.js#L193
@eclipse1985 is there a reason to use this syntax, or we can change it to ES6 --> const deferred = ()=> {...}?

[eclipse1985]

You're right, here Deferred is used as an old-style ES5 contructor. With ES6 you should use classes, but I don't know if you can just rewrite this like an arrow function. I will do some tests.

[eclipse1985]

Rewriting Deferred as an arrow function, obviously loses the pointer to the functional this, so the only way to avoid the use of a plain constructor function, is to write a class like this:

class Deferred {
  constructor() {
    this.resolve = null;
    this.reject = null;

    this.promise = new Promise((resolve, reject) => {
      this.resolve = resolve;
      this.reject = reject;
    });
  }
}

what do you think @AlbyIanna ?

[AlbyIanna]

Okay for me.