[_jmar777]

The specification has already reached "draft", so it's usually pretty stable at that point. Firefox has actually included generators for awhile now (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guid...), but their implementation is based on JavaScript 1.7, rather than ES6. The end implementation was pretty close, but didn't include the function* syntax (I don't believe they implemented yield* either). Regarding timeline, that's obviously hard to guess at from an external perspective, but most browser vendors seem to be comfortable enough with developing against draft-level specs, so hopefully soon.