JS getter example

test-getters.js

function Client(){
  this.subClient = new SubClient();
};
function SubClient(){
  this.numConnections = 0;
  this.status = 'OK';
};

// getting error,
// TypeError: Invalid property.  A property cannot both have accessors and be writable or have a value, #<Object>

['numConnections', 'status'].forEach(function(staticProp){
  Object.defineProperty(Client.prototype, staticProp, {
    enumerable: true,
    writable: true,
    get: function(){
      return this.subClient[staticProp];
    },
    set: function(newVal){
      return this.subClient[staticProp] = newVal;
    }
  });
});

var assert = require('assert');
var util = require('util');

var cl = new Client();

assert.equal(cl.numConnections, 0);
assert.equal(cl.status, 'OK');

cl.subClient.numConnections++;
cl.subClient.status = 'BROKEN';

assert.equal(cl.numConnections, 1);
assert.equal(cl.status, 'BROKEN');

// console.log(util.inspect(cl,true,10));