The ECMA-262 standard is the official documentation for the ECMAScript language.
Edition 5
The Fifth Edition of ECMA-262 has been approved and is available for public download.
- Download ECMA-262, Edition 5
- ES5 errata
Previous Editions of the ECMAScript standard
- ECMA-262 Edition 3 (pdf)
- Errata in the Edition 3 specification
- ECMA-262 Edition 1
- ECMA-262 Edition 2
Other TC39 Standards