primap v1.0.2

Primap: Private Members WeakMap

Use weakmaps to provide truly private properties to your classes.

This is a very succint implementation and abstraction

Usage:

Import primap in your class definition module and start using it. The important step is to bind it to your object reference before setting any properties on _p():

// var _p = require('primap');
import _p from 'primap';

Class Hello {
  constructor(from, to) {
    _p().bind(this); // important!

    // setting as property access
    _p().from = from;

    // setting as params for dynamic prop names for example
    _p('to', to);
  }

  get greeter() {
    return _p().from;
  }

  sayIt() {
    return `Hello darling! I know your name is ${_p().to}, I'm ${this.greeter}`
  }
}

// module.exports = Hello;
export default Hello;

Import your class somewhere else

// var Hello = require('./Hello');
import Hello from './Hello';

const hello = new Hello('John', 'Mary');

hello.sayIt(); // "Hello darling! I know your name is Mary, I'm John"

hello.from; // undefined