🧱 Axera - FCA

What is this?

This is the incoming FB Chat API published by the Axera Team.

What to expect?

This source code is experimental and is not yet complete but shows part of the structure of the incoming FCA.

1. state.js        ← owns globals
2. core.js         ← computes decisions
3. effects.js      ← does IO
4. adapters.js     ← callback / promise

const MyLibrary = (() => {
  const privateMethod = Symbol('privateMethod');
  
  function MyLibrary() {
    this.data = 'Some public data';
  }

  // Private method
  MyLibrary.prototype[privateMethod] = function() {
    console.log('This is a private method!');
  };

  // Public method to access the private method
  MyLibrary.prototype.callPrivateMethod = function() {
    this[privateMethod]();  // Access private method using the symbol
  };

  return MyLibrary;
})();

// Usage
const lib = new MyLibrary();
lib.callPrivateMethod();  // This is a private method!

// The following line would throw an error because privateMethod is not accessible directly
// lib[privateMethod]();  // Error: lib[privateMethod] is not a function

const passwordSymbol = Symbol('password');

const userCredentials = {
  username: 'alice',
  [passwordSymbol]: 'superSecretPassword',
};

console.log(userCredentials.username);  // 'alice'

// Trying to access the password using the symbol (external code would need to know this)
console.log(userCredentials[passwordSymbol]);  // 'superSecretPassword'

// But external code can’t get the password through normal means:
console.log(Object.keys(userCredentials));  // [ 'username' ]