Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.javascript > #16521

Re: What's a good Javascript book?

Path csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!eternal-september.org!feeder.eternal-september.org!newsfeed.straub-nv.de!noris.net!newsfeed.arcor.de!newsspool3.arcor-online.net!news.arcor.de.POSTED!not-for-mail
Content-Type text/plain; charset="ISO-8859-1"
Message-ID <1391239.xtCtL9uci3@PointedEars.de> (permalink)
From Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To Thomas 'PointedEars' Lahn <cljs@PointedEars.de>
Organization PointedEars Software (PES)
Date Wed, 10 Oct 2012 00:32:31 +0200
User-Agent KNode/4.4.11
Content-Transfer-Encoding 7Bit
X-Face %i>XG-yXR'\"2P/C_aO%~;2o~?g0pPKmbOw^=NT`tprDEf++D.m7"}HW6.#=U:?2GGctkL,f89@H46O$ASoW&?s}.k+&.<b';Md8`dH6iqhT)6C^.Px|[=M@7=Ik[_w<%n1Up"LPQNu2m8|L!/3iby{-]A+#YE}Kl{Cw$\U!kD%K}\2jz"QQP6Uqr],./"?;=4v
Face 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
Subject Re: What's a good Javascript book?
Newsgroups comp.lang.javascript
References <a30f024f-096a-48c2-a1fb-c1465c8e4267@googlegroups.com> <k4umv3$o27$1@news.albasani.net> <QzABPTFMH$cQFwLs@J.A830F0FF37FB96852AD08924D9443D28E23ED5CD> <Co2dnVSmOJ7VyunNnZ2dnUVZ_vGdnZ2d@earthlink.com>
Followup-To comp.lang.javascript
MIME-Version 1.0
Lines 29
NNTP-Posting-Date 10 Oct 2012 00:32:32 CEST
NNTP-Posting-Host 22666bbf.newsspool4.arcor-online.net
X-Trace DXC=I^[M=keSX48RadXUBHgFh34IUK<Cl32<14Fo<]lROoR18kF<OcfhCO;^h?K5if;]b;DZm8W4\YJN<J`:FmdeL>K0d@Z]ZC][K65G]Wj6?RSQa0
X-Complaints-To usenet-abuse@arcor.de
Xref csiph.com comp.lang.javascript:16521

Followups directed to: comp.lang.javascript

Show key headers only | View raw

Patricia Shanahan wrote:

> [An object] could be implemented using a combined doubly linked list and
> hash table, similar to Java's LinkedHashMap. Append each new entry to the
> linked list, use the hash map to find entries, and update the linked
> list when an item is removed. The linked list is used to iterate in
> order of appearance.
> 
> However, JavaScript has a fairly complicated scope structure.

First of all, JavaScript is an implementation of ECMAScript.  One of many.  
And ECMAScript gives its conforming implementations a wide latitude.  
Ascribing features of the standard to the implementation of the standard and 
vice-versa is the first capital beginner's mistake in this field:

<http://PointedEars.de/es-matrix>

The second one is ascribing features (and failings) of the host environment 
API to the implementation or the standard.  You will find both often in 
books and on Web sites actually not worth reading.

> Hash maps for identifier lookup make most sense if there are a lot of
> identifiers in one undifferentiated scope. Linked lists are faster and
> more compact than hash maps for small numbers of entries.

Second, what has scope to do with the way objects are implemented?

-- 
When all you know is jQuery, every problem looks $(olvable).

Back to comp.lang.javascript | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

What's a good Javascript book? I Am Here <iamhereintheworld@gmail.com> - 2012-10-08 06:35 -0700
  Re: What's a good Javascript book? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-08 13:52 +0000
    Re: What's a good Javascript book? "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2012-10-08 17:03 +0300
      Re: What's a good Javascript book? Tim Streater <timstreater@greenbee.net> - 2012-10-08 15:22 +0100
        Re: What's a good Javascript book? "Mel Smith" <med_cutout_syntel@aol.com> - 2012-10-08 08:56 -0600
  Re: What's a good Javascript book? Stefan Weiss <krewecherl@gmail.com> - 2012-10-08 16:11 +0200
    Re: What's a good Javascript book? John G Harris <john@nospam.demon.co.uk> - 2012-10-09 10:43 +0100
      Re: What's a good Javascript book? Stefan Weiss <krewecherl@gmail.com> - 2012-10-09 13:12 +0200
        Re: What's a good Javascript book? John G Harris <john@nospam.demon.co.uk> - 2012-10-10 15:32 +0100
          Re: What's a good Javascript book? Stefan Weiss <krewecherl@gmail.com> - 2012-10-10 20:13 +0200
            Re: What's a good Javascript book? John G Harris <john@nospam.demon.co.uk> - 2012-10-11 14:28 +0100
      Re: What's a good Javascript book? Patricia Shanahan <pats@acm.org> - 2012-10-09 17:56 +0100
        Re: What's a good Javascript book? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-10 00:32 +0200
          Re: What's a good Javascript book? Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-10-09 16:37 -0700
          Re: What's a good Javascript book? Patricia Shanahan <pats@acm.org> - 2012-10-10 06:44 +0100
            Re: What's a good Javascript book? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-10 20:09 +0200
            Re: What's a good Javascript book? Dr J R Stockton <reply1241@merlyn.demon.co.uk.invalid> - 2012-10-11 19:43 +0100
  Re: What's a good Javascript book? Gregor Kofler <usenet@gregorkofler.com> - 2012-10-08 16:21 +0200
  Re: What's a good Javascript book? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2012-10-08 07:56 -0700
  Re: What's a good [JavaScript] book? Matt McDonald <matt@fortybelow.ca> - 2012-10-08 11:38 -0400
    Re: What's a good [JavaScript] book? Matt McDonald <matt@fortybelow.ca> - 2012-10-08 11:42 -0400
      Re: What's a good [JavaScript] book? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-10 00:41 +0200
  Re: What's a good Javascript book? Danny <dann90038@gmail.com> - 2012-10-08 11:57 -0700
    Re: What's a good Javascript book? Patricia Shanahan <pats@acm.org> - 2012-10-08 20:39 +0100
  Re: What's a good Javascript book? I Am Here <iamhereintheworld@gmail.com> - 2012-10-09 06:19 -0700
    Re: What's a good Javascript book? Gregor Kofler <usenet@gregorkofler.com> - 2012-10-09 18:43 +0200
      Re: What's a good Javascript book? Gene Wirchenko <genew@ocis.net> - 2012-10-09 10:06 -0700
        Re: What's a good Javascript book? Scott Sauyet <scott.sauyet@gmail.com> - 2012-10-09 11:43 -0700
          Re: What's a good Javascript book? Patricia Shanahan <pats@acm.org> - 2012-10-09 20:07 +0100
          Re: What's a good Javascript book? Gene Wirchenko <genew@ocis.net> - 2012-10-09 13:40 -0700
        Re: What's a good Javascript book? Gregor Kofler <usenet@gregorkofler.com> - 2012-10-09 20:55 +0200
          Re: What's a good Javascript book? Gene Wirchenko <genew@ocis.net> - 2012-10-09 13:45 -0700
          Re: What's a good Javascript book? Scott Sauyet <scott.sauyet@gmail.com> - 2012-10-10 04:31 -0700
      Re: What's a good Javascript book? Stefan Weiss <krewecherl@gmail.com> - 2012-10-09 20:09 +0200
        Re: What's a good Javascript book? Gregor Kofler <usenet@gregorkofler.com> - 2012-10-09 21:01 +0200
          Re: What's a good Javascript book? Gene Wirchenko <genew@ocis.net> - 2012-10-09 13:50 -0700
      Re: What's a good Javascript book? John G Harris <john@nospam.demon.co.uk> - 2012-10-10 15:26 +0100
        Re: What's a good Javascript book? Tim Streater <timstreater@greenbee.net> - 2012-10-10 15:58 +0100
          Re: What's a good Javascript book? John G Harris <john@nospam.demon.co.uk> - 2012-10-11 14:39 +0100
            Re: What's a good Javascript book? Scott Sauyet <scott.sauyet@gmail.com> - 2012-10-11 06:52 -0700
              Re: What's a good Javascript book? John G Harris <john@nospam.demon.co.uk> - 2012-10-11 17:13 +0100
                Re: What's a good Javascript book? Scott Sauyet <scott.sauyet@gmail.com> - 2012-10-11 10:39 -0700
                Re: What's a good Javascript book? John G Harris <john@nospam.demon.co.uk> - 2012-10-12 10:37 +0100
                Re: What's a good Javascript book? Scott Sauyet <scott.sauyet@gmail.com> - 2012-10-12 07:11 -0700
                Re: What's a good Javascript book? John G Harris <john@nospam.demon.co.uk> - 2012-10-13 10:53 +0100
                Re: What's a good Javascript book? Gene Wirchenko <genew@ocis.net> - 2012-10-12 09:49 -0700
                Re: What's a good Javascript book? Scott Sauyet <scott.sauyet@gmail.com> - 2012-10-12 10:22 -0700
                Re: What's a good Javascript book? Gene Wirchenko <genew@ocis.net> - 2012-10-12 13:17 -0700
                Re: What's a good Javascript book? Patricia Shanahan <pats@acm.org> - 2012-10-12 20:32 +0100
                Re: What's a good Javascript book? John G Harris <john@nospam.demon.co.uk> - 2012-10-13 10:50 +0100
                Re: What's a good Javascript book? Patricia Shanahan <pats@acm.org> - 2012-10-13 19:45 +0100
                Re: What's a good Javascript book? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-13 21:55 +0200
                Re: What's a good Javascript book? Patricia Shanahan <pats@acm.org> - 2012-10-13 21:52 +0100
                Re: What's a good Javascript book? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-13 23:49 +0200
                Re: What's a good Javascript book? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-13 23:57 +0200
                Re: What's a good Javascript book? Patricia Shanahan <pats@acm.org> - 2012-10-13 23:34 +0100
                Re: What's a good Javascript book? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-14 02:09 +0200
                Re: What's a good Javascript book? Patricia Shanahan <pats@acm.org> - 2012-10-14 00:00 +0100
                Re: What's a good Javascript book? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-14 01:58 +0200
                Re: What's a good Javascript book? Patricia Shanahan <pats@acm.org> - 2012-10-14 07:17 +0100
                Re: What's a good Javascript book? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-15 01:17 +0200
                Re: What's a good Javascript book? John G Harris <john@nospam.demon.co.uk> - 2012-10-14 13:40 +0100
                Re: What's a good Javascript book? Gene Wirchenko <genew@ocis.net> - 2012-10-14 19:03 -0700
                Re: What's a good Javascript book? John G Harris <john@nospam.demon.co.uk> - 2012-10-15 10:42 +0100
    Re: What's a good Javascript book? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-09 22:49 +0200
  Re: What's a good Javascript book? Scott Sauyet <scott.sauyet@gmail.com> - 2012-10-09 12:00 -0700
  Re: What's a good Javascript book? I Am Here <iamhereintheworld@gmail.com> - 2012-10-16 06:57 -0700

csiph-web