Синтаксис левосторонних выражений MemberExpression [Yield, Await] : PrimaryExpression [?Yield, ?Await] MemberExpression [?Yield, ?Await] [ Expression [+In, ?Yield, ?Await] ] MemberExpression [?Yield, ?Await] . IdentifierName MemberExpression [?Yield, ?Await] TemplateLiteral [?Yield, ?Await, +Tagged] SuperProperty [?Yield, ?Await] MetaProperty new MemberExpression [?Yield, ?Await] Arguments [?Yield, ?Await] MemberExpression [?Yield, ?Await] . PrivateIdentifier SuperProperty [Yield, Await] : super [ Expression [+In, ?Yield, ?Await] ] super . IdentifierName MetaProperty : NewTarget ImportMeta […]