2.1.58 [ECMA-262/9:2018] Section 25.3 AsyncGeneratorFunction Objects

V0213: AsyncGenerator objects are not supported

The specification states:

 25.3 AsyncGeneratorFunction Objects
  
     AsyncGeneratorFunction objects are functions that are usually created by evaluating 
     AsyncGeneratorDeclaration, AsyncGeneratorExpression, and AsyncGeneratorMethod 
     syntactic productions. They may also be created by calling the 
     %AsyncGeneratorFunction% intrinsic.

EdgeHTML Mode

AsyncGenerators objects are not supported.