The AsyncGenerator object is returned by an async generator function and it conforms to both the async iterable protocol and the async iterator protocol.

The ArrayBuffer object is used to represent a generic raw binary data buffer.

The non-standard stack property of an Error instance offers a trace of which functions were called, in what order, from which line and file, and with what arguments. The stack string proceeds from the most recent calls to earlier ones, leading back to the original global scope call.

The throw() method of AsyncGenerator instances acts as if a throw statement is inserted in the generator's body at the current suspended position, which informs the generator of an error condition and allows it to handle the error, or perform cleanup and close itself.

The [@@asyncIterator]() method of AsyncIterator instances implements the async iterable protocol and allows built-in async iterators to be consumed by most syntaxes expecting async iterables, such as for await...of loops. It returns the value of this, which is the async iterator object itself.

The [@@toPrimitive]() method of Symbol values returns this symbol value.

The Object.getOwnPropertyDescriptor() static method returns an object describing the configuration of a specific property on a given object (that is, one directly present on an object and not in the object's prototype chain). The object returned is mutable but mutating it has no effect on the original property's configuration.

The message data property of an Error instance is a human-readable description of the error.

The caller accessor property of Function instances returns the function that invoked this function. For strict, arrow, async, and generator functions, accessing the caller property throws a TypeError.

The toSorted() method of Array instances is the copying version of the sort() method. It returns a new array with the elements sorted in ascending order.