Stage 0 proposals have been presented to the committee and not rejected definitively, but have not yet achieved any of the criteria to get into stage 1.
|🚀| Proposal | Champion | Stage
|---|------------------------------------------------------------------------------------ |-------------- | ------|------
| | Defensible Classes | Mark Miller & Doug Crockford | 0
| | Relationships | Mark Miller & Waldemar Horwat | 0
|🚀| String.prototype.at | Mathias Bynens & Rick Waldron | 0 |
| | Structured Clone |Dmitry Lomov |0
| | Annex B - HTML Attribute Event Handlers| Allen Wirfs-Brock | 0
| | Reflect.isCallable/Reflect.isConstructor| Caitlin Potter| 0
| | Additional metaproperties| Allen Wirfs-Brock| 0
| | Function Bind Syntax| Kevin Smith | 0
| | Do Expressions | Andreas Rossberg | 0
| | RegExp | Gorkem Yakin, Brian Terlson, & Nozomu Katō | 0
| | 64-Bit Integer Operations | Brendan Eich | 0
| | Method Parameter Decorators | Igor Minar | 0
| | Function Expression Decorators | Igor Minar | 0
|🚀| Zones (spec) | Domenic Denicola & Miško Hevery | 0
| | Updates to Tail Calls to include an explicit syntactic opt-in | Brian Terlson & Eric Faust | 0
🚀 means the champion thinks it's ready to advance but has not yet presented to the committee.