name
Polyfill of ES.next private name objects. This implementation patches ES5
Object
methods where possible to emulate private names as much as possible.
Still in some cases private names can be discovered:
-
If
Object
methods from other JS contexts are used. -
If properties are simply set like shown below, private names will be revealed by
for
iteration:objectsecret = valueIt is recommended to use
Object.defineProperty
orObject.defineProperties
for defining private named properties. Those methods will make sure to mark property as non-enumerable so that such propertes won't be reavealed.
Install
npm install name
Use
var Name = var secret = { // do not do `this[secret] = privateData` do following instead Object thisname = 'my'}MyClassprototype = { /*...*/ thissecret /*...*/ } var my = Object // => [ 'my' ]Object // => [ 'my' ] var names = for var name in my namesnames // => [ 'my' ]