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Standard ECMA-262
ECMAScript® 2015 Language Specification


6th edition (June 2015)

The latest version of this Ecma Standard is available here.

You can download the previous replaced "historical" editions of this Ecma Standard, free of charge:

File name Content
ECMA-262 1st edition Acrobat (r) PDF file
ECMA-262 2nd edition Acrobat (r) PDF file
ECMA-262 3rd edition Acrobat (r) PDF file
ECMA-262 4th edition NOT EXISTING*
ECMA-262 5th edition Acrobat (r) PDF file
ECMA-262 5.1 edition Acrobat (r) PDF file
ECMA-262 5.1 edition Browsable HTML

* Please note that for ECMAScript Edition 4 the Ecma standard number “ECMA-262 Edition 4” was reserved but not used in the Ecma publication process.
Therefore “ECMA-262 Edition 4” as an Ecma International publication does not exist.

Kindly note that the edition 5.1 of the ECMAScript Language Specification is also available in HTML file format here.

 

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