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This article will explain in detail what are the versions of ecmascript, and the content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

The versions are: 1,1.0; 2,2.0; 3,3.0; 4,5.0; 5,5.1; 6,2015 (referred to as ES6); 7,2016 (referred to as ES7); 8,2017 (ES8); 9,2018 (ES9); 10,2019 (ES10).

The operating environment of this tutorial: windows7 system, ECMAScript version 6, Dell G3 computer.

ECMAScript is a script programming language standardized by Ecma International (formerly known as the European Association of computer Manufacturers, European Computer Manufacturers Association) through ECMA-262. This language is widely used on the World wide Web, it is often called JavaScript or JScript, so it can be understood as a standard of JavaScript, but in fact the latter two are the implementation and extension of the ECMA-262 standard.

Introduction of ECMAScript (ES) version (release time of version)

Time version description: in July of the year ES1.0 was released in June 1997, the ECMA262 standard was issued in June 1998. ES2.0 released this version and modified it completely in line with the ISO/IEC 16262 international standard. In December 1999, ES3.0 was released as the prevailing standard of JavaScript, and it was widely supported that the ES4.0 draft was released in October 2007. the major manufacturers had different opinions. The scheme did not pass the release of ES3.1 in July 2008, and changed its name to ECMAScript 5 to abolish ECMAScript 4.0. therefore, version 4.0 does not exist. ES 5.0 was officially released in December 2009.

In June 2011, ES5.1 released this version and became the ISO international standard (ISO/IEC 16262 ISO/IEC 2011). The ES6 draft was released in December 2013.

ES6 was officially released in June 2015 and changed its name to "ECMAScript 2015" the TC39 Committee decided to release a version of ECMAScript every year ES7 released in June 2016, also known as "ECMAScript 2016"

ES8 released in June 2017, also known as "ECMAScript 2017"

ES9 released in June 2018, also known as "ECMAScript 2018"

ES10 released in June 2019, also known as "ECMAScript 2019"

Standard address:

ES6: http://www.ecma-international.org/ecma-262/6.0/

ES7: http://www.ecma-international.org/ecma-262/7.0/

ES8: http://www.ecma-international.org/ecma-262/8.0/

ES9: http://www.ecma-international.org/ecma-262/9.0/

ES10: http://www.ecma-international.org/ecma-262/10.0/

Related project address:

ECMA TC39: https://github.com/tc39

ECMA 262: https://github.com/tc39/ecma262

Proposals: https://github.com/tc39/proposals

Other:

Check out the latest version of ecma-262: https://www.ecma-international.org/publications/standards/Ecma-262.htm

The relationship between JavaScript and ECMAScript

JavaScript is a scripting language and ECMAScript is the specification. JavaScript is a scripting language based on the ECMAScript specification.

JavaScript is just one of the implementations of ECMAScript, and there are others.

Supplementary notes on professional terms:

Ecma International (Ecma International): an international information and telecommunications standards organization for membership, before 1994, it was called the European Association of computer Manufacturers (European Computer Manufacturers Association).

TC39 (Technical Committee 39): the 39th Technical expert Committee of ESMA, responsible for the formulation of ECMAScript standards, including Microsoft, Mozilla, Google and other large companies.

ISO: international Organization for Standardization (International Organization for Standardization)

IEC: international Electrotechnical Commission, founded in 1906, is the earliest international electrical standardization organization in the world, responsible for international standardization in the field of electrical and electronic engineering.

ISO/IEC 16262 ECMAScript 2011: ECMAScript language specification that conforms to both ISO and IEC standards. At present, it has been revised by ISO/IEC 22275 rig 2018.

ECMAScript (ES for short): a scripting language specification developed by Ecma International (formerly known as the European Association of computer Manufacturers) in accordance with the ECMA-262 and ISO/IEC 16262 standards.

ECMA-262: defines a set of keywords supported by ECMAScript that identify the beginning and end of an ECMAScript statement. According to regulations, keywords are reserved and cannot be used as variable or function names.

ECMA 402: develop some international API standards based on ECMAScript 5 or later.

ECMA 404:JSON specification.

ECMA 414: specifies which specifications are relevant to ECMAScript. Currently, 262402 and 404 are included internally.

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