ECMAScript® 2024 Language Specification

Draft ECMA-262 / February 15, 2024

A.5 Scripts and Modules

Script : ScriptBodyopt ScriptBody : StatementList[~Yield, ~Await, ~Return] Module : ModuleBodyopt ModuleBody : ModuleItemList ModuleItemList : ModuleItem ModuleItemList ModuleItem ModuleItem : ImportDeclaration ExportDeclaration StatementListItem[~Yield, +Await, ~Return] ModuleExportName : IdentifierName StringLiteral ImportDeclaration : import ImportClause FromClause ; import ModuleSpecifier ; ImportClause : ImportedDefaultBinding NameSpaceImport NamedImports ImportedDefaultBinding , NameSpaceImport ImportedDefaultBinding , NamedImports ImportedDefaultBinding : ImportedBinding NameSpaceImport : * as ImportedBinding NamedImports : { } { ImportsList } { ImportsList , } FromClause : from ModuleSpecifier ImportsList : ImportSpecifier ImportsList , ImportSpecifier ImportSpecifier : ImportedBinding ModuleExportName as ImportedBinding ModuleSpecifier : StringLiteral ImportedBinding : BindingIdentifier[~Yield, +Await] ExportDeclaration : export ExportFromClause FromClause ; export NamedExports ; export VariableStatement[~Yield, +Await] export Declaration[~Yield, +Await] export default HoistableDeclaration[~Yield, +Await, +Default] export default ClassDeclaration[~Yield, +Await, +Default] export default [lookahead ∉ { function, async [no LineTerminator here] function, class }] AssignmentExpression[+In, ~Yield, +Await] ; ExportFromClause : * * as ModuleExportName NamedExports NamedExports : { } { ExportsList } { ExportsList , } ExportsList : ExportSpecifier ExportsList , ExportSpecifier ExportSpecifier : ModuleExportName ModuleExportName as ModuleExportName