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Webmaster Forum / HTML, CSS, Scripts / JavaScript / October 2008FAQ Topic - What is ECMAScript? (2008-10-19)
----------------------------------------------------------------------- FAQ Topic - What is ECMAScript? ----------------------------------------------------------------------- ECMAScript is the international standard for JavaScript. JScript 3.0 and JavaScript 1.5 are more or less ECMAScript compliant. In addition ECMA 327 defines the Compact Profile of ECMAScript by describing the features from ECMA 262 that may be omitted in some resource-constrained environments. Note that ECMAScript did not attempt to standardize the document object model. http://www.ecma-international.org/publications/standards/Ecma-262.htm The current edition is ECMA-262, 3rd Edition. There is some support for this edition in JScript 5.0 and JavaScript 1.3. JScript 5.5 and JavaScript 1.5, in Netscape 6.1 and later, are compliant (JavaScript 1.5 in Netscape 6 missed some methods).  SignaturePostings such as this are automatically sent once a day. Their goal is to answer repeated questions, and to offer the content to the community for continuous evaluation/improvement. The complete comp.lang.javascript FAQ is at http://jibbering.com/faq/index.html. The FAQ workers are a group of volunteers. The sendings of these daily posts are proficiently hosted by http://www.pair.com. > ------------------------------------------------------------------ > FAQ Topic - What is ECMAScript? [quoted text clipped - 6 lines] > ECMA 262 that may be omitted in some resource-constrained > environments. // I would put that 327 sentence last, as a paragraph. // Is there an ISO version? > Note that ECMAScript did not attempt to standardize > the document object model. // AFAIR, it does not deal with it. + ECMAScript does not cover the document object model. > http://www.ecma-international.org/publications/standards/Ecma-262.htm // ISO/IEC 16262 is // issued by *the* international standards organisation, has fewer // errors, and might be considered to use a nicer font. // It is also free as PDF. > The current edition is ECMA-262, 3rd Edition. There is some // ^ of what? > support for this edition in JScript 5.0 and JavaScript 1.3. > JScript 5.5 and JavaScript 1.5, in Netscape 6.1 and later, are > compliant (JavaScript 1.5 in Netscape 6 missed some methods). // There, "some support" is not appropriate. It may be that 5.0 & // 1.3 did not implement everything that 3rd introduced; but surely // they contain most of what 3rd calls for? In any case, few are // now interested in those versions? // DRAFT: ECMAScript is the international standard for javascript. It does not cover the Document Object Model. The current published editions are ECMA-262 3rd Edition (2000) and ISO/IEC 16262 2nd Edition (2002). A new version is (2008) in development. http://www.ecma-international.org/publications/standards/Ecma-262.htm <ISO link also here> // I don't think that the support details are necessary; if they are // wanted, they need to be rewritten with new facts for 2008. In addition, ECMA-327 defines the Compact Profile of ECMAScript by describing the features from ECMA-262 that may be omitted in some resource-constrained environments. // ISO version of 327? // If no download link for 327 can be given, and I think anyway, // links to the ECMA and ISO home, or home-of-ordering, pages might // be appropriate. // There is already "What is JScript?"; that could be changed // into "What are JavaScript and JScript?; that would be a better // place for the aforementioned support details, if wanted. -- (c) John Stockton, near London, UK. Posting with Google. Mail: J.R.""""""""@physics.org or (better) via Home Page at Web: <URL:http://www.merlyn.demon.co.uk/> FAQish topics, acronyms, links, etc.; Date, Delphi, JavaScript, ....| >> ------------------------------------------------------------------ >> FAQ Topic - What is ECMAScript? >> ------------------------------------------------------------------ [...] >> support for this edition in JScript 5.0 and JavaScript 1.3. >> JScript 5.5 and JavaScript 1.5, in Netscape 6.1 and later, are [quoted text clipped - 4 lines] > // they contain most of what 3rd calls for? In any case, few are > // now interested in those versions? It opens a can of worms. I think linking to Pratap's "JScript Deviations" pdf in resources is the right thing. > // DRAFT: > > ECMAScript is the international standard for javascript. It does not > cover the Document Object Model. The current published editions are > ECMA-262 3rd Edition (2000) and ISO/IEC 16262 2nd Edition (2002). A > new version is (2008) in development. We have a question: "What does the future hold for ECMAScript?" As far as listing 16262, that is in 'Resources' > http://www.ecma-international.org/publications/standards/Ecma-262.htm > <ISO link also here> > > // I don't think that the support details are necessary; if they are > // wanted, they need to be rewritten with new facts for 2008. It is not practical to provide a list of implementation bugs here. I should add a link to Pratap's "JScript Deviations" in 'Resources' section. > In addition, ECMA-327 defines the Compact Profile of ECMAScript by > describing the features from ECMA-262 that may be omitted in some > resource-constrained environments. > // ISO version of 327? I don't know > // If no download link for 327 can be given, and I think anyway, > // links to the ECMA and ISO home, or home-of-ordering, pages might > // be appropriate. Why? > // There is already "What is JScript?"; that could be changed > // into "What are JavaScript and JScript?; that would be a better > // place for the aforementioned support details, if wanted. Yes that's redundant. ECMAScript is the international standard for JavaScript&trade;. JScript and JavaScript&trade; are implementations of ECMAScript. <URL>http://www.ecma-international.org/publications/standards/Ecma-262.htm</URL> ECMAScript does not define the DOM |document|, the browser |window| object, or |ActiveXObject|. These are all Host objects. The current edition is ECMA-262, 3rd Edition. ECMA-327 "Compact Profile" is a subset of ECMAScript that defines features that may be omitted in resource-constrained environments. These features include |with|, |eval|, |Function|, and allowing modification of built-in objects (String, Date, et c). <URL>http://www.ecma-international.org/publications/standards/Ecma-327.htm</URL> ECMA-357 "E4X" defines a set of programming language extensions adding native XML support to ECMAScript. E4X is implemented in JavaScript&trade; 1.6, ActionScript 3, and Adobe Acrobat. <URL>http://www.ecma-international.org/publications/standards/Ecma-357.htm</URL> Garrett Signaturecomp.lang.javascript FAQ <URL: http://jibbering.com/faq/ > > >> ------------------------------------------------------------------ > >> FAQ Topic - What is ECMAScript? > >> ------------------------------------------------------------------ > It opens a can of worms. I think linking to Pratap's "JScript > Deviations" pdf in resources is the right thing. To possibly get an opinion on that PDF, give the URL of the current version. > > // DRAFT: > [quoted text clipped - 5 lines] > We have a question: > "What does the future hold for ECMAScript?" Merge it in this. That can save space. > As far as listing 16262, that is in 'Resources' Agreed; but it should be in this section. > > In addition, ECMA-327 defines the Compact Profile of ECMAScript by > > describing the features from ECMA-262 that may be omitted in some > > resource-constrained environments. > > // ISO version of 327? > I don't know None found > > // If no download link for 327 can be given, and I think anyway, > > // links to the ECMA and ISO home, or home-of-ordering, pages might > > // be appropriate. > > Why? (a) Authorities should be easy to locate. (b) So that those who want to buy it can know where to look. But <http://www.ecma-international.org/publications/standards/ Ecma-327.htm> offers a free PDF. H'mm : I see that my site cites that. > ECMA-327 "Compact Profile" is a subset of ECMAScript that defines > features that may be omitted in resource-constrained environments. > These features include |with|, |eval|, |Function|, and allowing > modification of built-in objects (String, Date, et c). AFAIR, 327 has never been mentioned in CLJ except in reference to the FAQ. A search reveals just a few cases. I doubt whether those two lines of detail are worth having there. Wikipedia "ECMAScript" has various links : link to that Wiki page? -- (c) John Stockton, near London, UK. Posting with Google. Mail: J.R.""""""""@physics.org or (better) via Home Page at Web: <URL:http://www.merlyn.demon.co.uk/> FAQish topics, acronyms, links, etc.; Date, Delphi, JavaScript, ....| > ----------------------------------------------------------------------- > FAQ Topic - What is ECMAScript? > ----------------------------------------------------------------------- > > ECMAScript is the international standard for JavaScript. > [...] The appropriate wording is: ECMAScript is the international standard that current language implementations (JavaScript, JScript etc.) are based on. PointedEars Signaturerealism: HTML 4.01 Strict evangelism: XHTML 1.0 Strict madness: XHTML 1.1 as application/xhtml+xml -- Bjoern Hoehrmann |
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