by tc39

tc39 / ecma262

Status, process, and documents for ECMA-262

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This repo

This repository contains the source for the current draft of ECMA-262, the ECMAScript® Language Specification.

This source is processed to obtain a human-readable version, which you can view here.

If you want to explore how the specification was written, you can also view the source with its history in searchfox.

Current Proposals

Proposals follow the TC39 process and are tracked in the proposals repository.

Contributing New Proposals

Please see Contributing to ECMAScript for the most up-to-date information on contributing proposals to this standard.

Developing the Specification

After cloning, do

npm install
to set up your environment. You can then do
npm run build
to build the spec or
npm run watch
to set up a continuous build. The results will appear in the
directory, which you can use
npm run clean
to delete.


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