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From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups: comp.lang.javascript
Subject: Re: How do I access nested key/value pairs?
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Date: Thu, 05 Mar 2015 16:25:27 +0100
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Denis McMahon wrote:

> On Wed, 04 Mar 2015 07:51:44 -0800, Masoom Tulsiani wrote:
>> var hash =
> 
> hash seems to be an object containing three anonymous objects with no
> means of distinguishing them.
> 
> Trying to load this in javascript causes an error because each element of
> an object (including a nested object) requires an identifier.

Utter nonsense.

- There is no “javascript”, see my sig.
- Objects do not have names (so it makes no sense to speak of “anonymous 
  objects”); they have identity (one object is different from another).
- Objects do not have elements; they have properties.  *Arrays* have
  elements; they are objects which also have indexes (special property
  names).
- Property names do not need to be identifiers (for example, indexes are
  not identifiers as they are representation of integers).  In
  implementations of ECMAScript Edition 5 and later they can even be
  reserved words.

  var x = {"1701foo": "bar"};
  var u = x;

  /* "bar" */
  u["1701foo"]

  x["1701foo"] = "baz";

  /* "baz" */
  u["1701foo"]

  /* true */
  u == x

  /* true */
  u === x

  /* ES 5+ only */
  x.float = Math.PI;

  /* 3.141592653589793… */
  u.float

-- 
PointedEars
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