Синтаксис Блока BlockStatement [Yield, Await, Return] : Block [?Yield, ?Await, ?Return] Block [Yield, Await, Return] : { StatementList [?Yield, ?Await, ?Return] opt } StatementList [Yield, Await, Return] : StatementListItem [?Yield, ?Await, ?Return] StatementList [?Yield, ?Await, ?Return] StatementListItem [?Yield, ?Await, ?Return] StatementListItem [Yield, Await, Return] : Statement [?Yield, ?Await, ?Return] Declaration […]