The following tokens are also considered to be FutureReservedWords when parsing strict mode code:

implements  package  protected
interface  private  public

 

When processing an instance of the production the interpretation of CoverParenthesizedExpressionAndArrowParameterList is refined using the following grammar:

 

When processing an instance of the production the interpretation of CoverCallExpressionAndAsyncArrowHead is refined using the following grammar:

 

In certain circumstances when processing an instance of the production the following grammar is used to refine the interpretation of LeftHandSideExpression:

AssignmentPattern[Yield, Await] : ObjectAssignmentPattern[?Yield, ?Await] ArrayAssignmentPattern[?Yield, ?Await] ObjectAssignmentPattern[Yield, Await] : { } { AssignmentRestProperty[?Yield, ?Await] } { AssignmentPropertyList[?Yield, ?Await] } { AssignmentPropertyList[?Yield, ?Await] , AssignmentRestProperty[?Yield, ?Await]opt } ArrayAssignmentPattern[Yield, Await] : [ Elisionopt AssignmentRestElement[?Yield, ?Await]opt ] [ AssignmentElementList[?Yield, ?Await] ] [ AssignmentElementList[?Yield, ?Await] , Elisionopt AssignmentRestElement[?Yield, ?Await]opt ] AssignmentPropertyList[Yield, Await] : AssignmentProperty[?Yield, ?Await] AssignmentPropertyList[?Yield, ?Await] , AssignmentProperty[?Yield, ?Await] AssignmentElementList[Yield, Await] : AssignmentElisionElement[?Yield, ?Await] AssignmentElementList[?Yield, ?Await] , AssignmentElisionElement[?Yield, ?Await] AssignmentElisionElement[Yield, Await] : Elisionopt AssignmentElement[?Yield, ?Await] AssignmentProperty[Yield, Await] : IdentifierReference[?Yield, ?Await] Initializer[+In, ?Yield, ?Await]opt PropertyName[?Yield, ?Await] : AssignmentElement[?Yield, ?Await] AssignmentElement[Yield, Await] : DestructuringAssignmentTarget[?Yield, ?Await] Initializer[+In, ?Yield, ?Await]opt AssignmentRestElement[Yield, Await] : ... DestructuringAssignmentTarget[?Yield, ?Await] DestructuringAssignmentTarget[Yield, Await] : LeftHandSideExpression[?Yield, ?Await]

 

When the production is recognized the following grammar is used to refine the interpretation of CoverParenthesizedExpressionAndArrowParameterList:

 

When the production is recognized the following grammar is used to refine the interpretation of CoverParenthesizedExpressionAndArrowParameterList:

 

All grammar symbols not explicitly defined by the StringNumericLiteral grammar have the definitions used in the Lexical Grammar for numeric literals.

Each \u TrailSurrogate for which the choice of associated u LeadSurrogate is ambiguous shall be associated with the nearest possible u LeadSurrogate that would otherwise have no corresponding \u TrailSurrogate.