For several users most web browsers have shipped some form of JavaScript developer console. Unfortunately, without a standard specification, each browser has implemented the language bindings of this console differently.
This specification aims to standardize and extend the current web browser behavior.
This specification is still in its very early stages. It is very much a work in progress.
The Console Specification is written in Bikeshed and is tracked in this repository as index.bs.
The latest rendered version can be viewed at https://terinjokes.github.io/console-spec.