1. htmlobjectelement api: code

  2. htmlobjectelement api: codebase

  3. htmlobjectelement api: codetype

  4. rtcrtpreceiver api: getparameters: `codecs` property in returned object

  5. rtcrtpsender api: `getparameters()`: `codecs` property in returned object

  6. html element: object: codebase

  7. html element: object: codetype

  8. ecmascript 2018 (es9)