TypeScript Language Specification v1.5

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ModuleBody: ModuleElements opt ModuleElements: ModuleElement ModuleElements ModuleElement ModuleElement: Statement export opt VariableDeclaration export opt FunctionDeclaration export opt ClassDeclaration export opt InterfaceDeclaration export opt TypeAliasDeclaration export opt EnumDeclaration export opt ModuleDeclaration export opt ImportDeclaration export opt AmbientDeclaration ImportDeclaration: import Identifier = EntityName ; EntityName: ModuleName ModuleName . Identifier A.9 Source Files and External Modules SourceFile: ImplementationSourceFile DeclarationSourceFile ImplementationSourceFile: ImplementationElements opt ImplementationElements: ImplementationElement ImplementationElements ImplementationElement ImplementationElement: ModuleElement ExportAssignment AmbientExternalModuleDeclaration export opt ExternalImportDeclaration 164
DeclarationSourceFile: DeclarationElements opt DeclarationElements: DeclarationElement DeclarationElements DeclarationElement DeclarationElement: ExportAssignment AmbientExternalModuleDeclaration export opt InterfaceDeclaration export opt TypeAliasDeclaration export opt ImportDeclaration export opt AmbientDeclaration export opt ExternalImportDeclaration ExternalImportDeclaration: import Identifier = ExternalModuleReference ; ExternalModuleReference: require ( StringLiteral ) ExportAssignment: export = Identifier ; A.10 Ambients AmbientDeclaration: declare AmbientVariableDeclaration declare AmbientFunctionDeclaration declare AmbientClassDeclaration declare AmbientEnumDeclaration declare AmbientModuleDeclaration AmbientVariableDeclaration: var Identifier TypeAnnotation opt ; AmbientFunctionDeclaration: function Identifier CallSignature ; AmbientClassDeclaration: class Identifier TypeParameters opt ClassHeritage { AmbientClassBody } AmbientClassBody: AmbientClassBodyElements opt 165
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TypeScript Language Specification V
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Table of Contents 1 Introduction ..
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4.9.1 Standard Function Expressions
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9.1 Enum Declarations .............
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1 Introduction JavaScript applicati
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1.1 Ambient Declarations An ambient
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call '$' as a function. The behavio
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function getX(p: Point) { return p.
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This TypeScript class declaration c
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Section 9 describes how programmers
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Interface definitions, like the one
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TypeScript modules provide a mechan
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2 Basic Concepts The remainder of t
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Each enum declaration has a declara
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When an identifier is resolved as a
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which infers the type of 'x' to be
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The only possible values for the Vo
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interface Array { length: number; [
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3.4 Union Types Union types represe
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3.5 Type Parameters A type paramete
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3.6 Named Types Classes, interfaces
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3.7.1 Predefined Types The any, num
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TypeMember: PropertySignature CallS
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3.7.8 Constructor Type Literals A c
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3.8.2 Call Signatures A call signat
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RestParameter: ... Identifier TypeA
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IndexSignature: [ Identifier : stri
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Type aliases are referenced using t
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o o If each type in U has an appare
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o o o M is a non-specialized call o
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3.10.5 Contextual Signature Instant
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interface List { data: T; next: Lis
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4.3 Identifiers When an expression
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of the object literal includes a nu
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A super call invokes the constructo
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( id ) => { ... } ( id ) => expr Th
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A dot notation property access of t
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If func is of type Any, or of an ob
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An example: signature are fixed, an
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This rule means that the call to 'f
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4.14.4 The delete Operator The 'del
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Any Boolean Number String Other Any
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where ??= is one of the compound as
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4.18 The Comma Operator The comma o
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function foo(x: number | string) {
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function processValue(value: number
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5 Statements This chapter describes
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BindingProperty: Identifier Initial
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Similarly, an array destructuring d
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5.5 Continue Statements A 'continue
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6 Functions TypeScript extends Java
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function f(x: number) { if (x
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When the output target is ECMAScrip
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101
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An interface has the members specif
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interface Document { createElement(
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8 Classes TypeScript supports class
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The following constraints must be s
Page 121 and 122: Private and protected accessibility
Page 123 and 124: interface A { x: number; f: () => v
Page 125 and 126: ConstructorOverloads: ConstructorOv
Page 127 and 128: BaseClass.apply(this, arguments); a
Page 129 and 130: Initializer expressions for instanc
Page 131 and 132: var x = A.create(); // new A() var
Page 133 and 134: MemberVariableAssignments is a sequ
Page 135 and 136: In addition, the '__extends' functi
Page 137 and 138: 9 Enums An enum type is a distinct
Page 139 and 140: An identifier or property access th
Page 141: var Color; (function (Color) { Colo
Page 144 and 145: If the declaration of 'M' above had
Page 146 and 147: module A { export interface X { s:
Page 148 and 149: module outer { var local = 1; expor
Page 150 and 151: where ModuleName is the name of the
Page 152 and 153: DeclarationElement: ExportAssignmen
Page 154 and 155: that source file is considered an e
Page 156 and 157: Unlike a non-instantiated internal
Page 158 and 159: import g = require("./geometry"); v
Page 160 and 161: 12.1.3 Ambient Class Declarations A
Page 162 and 163: An ExternalImportDeclaration in an
Page 164 and 165: PrimaryType: ParenthesizedType Pred
Page 166 and 167: ParameterList: RequiredParameterLis
Page 168 and 169: UnaryExpression: ( Modified ) … <
Page 170 and 171: ClassExtendsClause: extends ClassTy
Page 174 and 175: AmbientClassBodyElements: AmbientCl
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TypeScript Language Specification v1.5

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