Install
sh
npm install --save-dev @babel/types
API
anyTypeAnnotation
javascript
t.anyTypeAnnotation()
See also t.isAnyTypeAnnotation(node, opts) and t.assertAnyTypeAnnotation(node, opts).
Aliases: Flow, FlowType, FlowBaseAnnotation
arrayExpression
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javascript
t.arrayExpression(elements)
See also t.isArrayExpression(node, opts) and t.assertArrayExpression(node, opts).
Aliases: Expression
-
elements:Array<null | Expression | SpreadElement>(default:[]) -
- *
argumentPlaceholder
javascript
t.argumentPlaceholder()
See also t.isArgumentPlaceholder(node, opts) and t.assertArgumentPlaceholder(node, opts).
Aliases: none
arrayPattern
javascript
t.arrayPattern(elements)
See also t.isArrayPattern(node, opts) and t.assertArrayPattern(node, opts).
Aliases: Pattern, PatternLike, LVal
-
elements:Array<PatternLike>(required) -
decorators:Array<Decorator>(default:null) -
typeAnnotation:TypeAnnotation | TSTypeAnnotation | Noop(default:null) -
- *
arrayTypeAnnotation
javascript
t.arrayTypeAnnotation(elementType)
See also t.isArrayTypeAnnotation(node, opts) and t.assertArrayTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
elementType:FlowType(required) -
- *
arrowFunctionExpression
javascript
t.arrowFunctionExpression(params, body, async)
See also t.isArrowFunctionExpression(node, opts) and t.assertArrowFunctionExpression(node, opts).
Aliases: Scopable, Function, BlockParent, FunctionParent, Expression, Pureish
-
params:Array<LVal>(required) -
body:BlockStatement | Expression(required) -
async:boolean(default:false) -
expression:boolean(default:null) -
generator:boolean(default:false) -
returnType:TypeAnnotation | TSTypeAnnotation | Noop(default:null) -
typeParameters:TypeParameterDeclaration | TSTypeParameterDeclaration | Noop(default:null) -
- *
assignmentExpression
javascript
t.assignmentExpression(operator, left, right)
See also t.isAssignmentExpression(node, opts) and t.assertAssignmentExpression(node, opts).
Aliases: Expression
-
operator:string(required) -
left:LVal(required) -
right:Expression(required) -
- *
assignmentPattern
javascript
t.assignmentPattern(left, right)
See also t.isAssignmentPattern(node, opts) and t.assertAssignmentPattern(node, opts).
Aliases: Pattern, PatternLike, LVal
-
left:Identifier | ObjectPattern | ArrayPattern(required) -
right:Expression(required) -
decorators:Array<Decorator>(default:null) -
typeAnnotation:TypeAnnotation | TSTypeAnnotation | Noop(default:null) -
- *
awaitExpression
javascript
t.awaitExpression(argument)
See also t.isAwaitExpression(node, opts) and t.assertAwaitExpression(node, opts).
Aliases: Expression, Terminatorless
-
argument:Expression(required) -
- *
bigIntLiteral
javascript
t.bigIntLiteral(value)
See also t.isBigIntLiteral(node, opts) and t.assertBigIntLiteral(node, opts).
Aliases: Expression, Pureish, Literal, Immutable
-
value:string(required) -
- *
binaryExpression
javascript
t.binaryExpression(operator, left, right)
See also t.isBinaryExpression(node, opts) and t.assertBinaryExpression(node, opts).
Aliases: Binary, Expression
-
operator:"+" | "-" | "/" | "%" | "*" | "**" | "&" | "|" | ">>" | ">>>" | "<<" | "^" | "==" | "===" | "!=" | "!==" | "in" | "instanceof" | ">" | "<" | ">=" | "<="(required) -
left:Expression(required) -
right:Expression(required) -
- *
bindExpression
javascript
t.bindExpression(object, callee)
See also t.isBindExpression(node, opts) and t.assertBindExpression(node, opts).
Aliases: Expression
-
object(required) -
callee(required) -
- *
blockStatement
javascript
t.blockStatement(body, directives)
See also t.isBlockStatement(node, opts) and t.assertBlockStatement(node, opts).
Aliases: Scopable, BlockParent, Block, Statement
-
body:Array<Statement>(required) -
directives:Array<Directive>(default:[]) -
- *
booleanLiteral
javascript
t.booleanLiteral(value)
See also t.isBooleanLiteral(node, opts) and t.assertBooleanLiteral(node, opts).
Aliases: Expression, Pureish, Literal, Immutable
-
value:boolean(required) -
- *
booleanLiteralTypeAnnotation
javascript
t.booleanLiteralTypeAnnotation(value)
See also t.isBooleanLiteralTypeAnnotation(node, opts) and t.assertBooleanLiteralTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
value:boolean(required) -
- *
booleanTypeAnnotation
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javascript
t.booleanTypeAnnotation()
See also t.isBooleanTypeAnnotation(node, opts) and t.assertBooleanTypeAnnotation(node, opts).
Aliases: Flow, FlowType, FlowBaseAnnotation
breakStatement
javascript
t.breakStatement(label)
See also t.isBreakStatement(node, opts) and t.assertBreakStatement(node, opts).
Aliases: Statement, Terminatorless, CompletionStatement
-
label:Identifier(default:null) -
- *
callExpression
javascript
t.callExpression(callee, arguments)
See also t.isCallExpression(node, opts) and t.assertCallExpression(node, opts).
Aliases: Expression
-
callee:Expression(required) -
arguments:Array<Expression | SpreadElement | JSXNamespacedName>(required) -
optional:true | false(default:null) -
typeArguments:TypeParameterInstantiation(default:null) -
typeParameters:TSTypeParameterInstantiation(default:null) -
- *
catchClause
javascript
t.catchClause(param, body)
See also t.isCatchClause(node, opts) and t.assertCatchClause(node, opts).
Aliases: Scopable, BlockParent
-
param:Identifier(default:null) -
body:BlockStatement(required) -
- *
classBody
javascript
t.classBody(body)
See also t.isClassBody(node, opts) and t.assertClassBody(node, opts).
-
body:Array<ClassMethod | ClassProperty | ClassPrivateProperty | TSDeclareMethod | TSIndexSignature>(required) -
- *
classDeclaration
javascript
t.classDeclaration(id, superClass, body, decorators)
See also t.isClassDeclaration(node, opts) and t.assertClassDeclaration(node, opts).
Aliases: Scopable, Class, Statement, Declaration, Pureish
-
id:Identifier(default:null) -
superClass:Expression(default:null) -
body:ClassBody(required) -
decorators:Array<Decorator>(default:null) -
abstract:boolean(default:null) -
declare:boolean(default:null) -
implements:Array<TSExpressionWithTypeArguments | ClassImplements>(default:null) -
mixins(default:null) -
superTypeParameters:TypeParameterInstantiation | TSTypeParameterInstantiation(default:null) -
typeParameters:TypeParameterDeclaration | TSTypeParameterDeclaration | Noop(default:null) -
- *
classExpression
javascript
t.classExpression(id, superClass, body, decorators)
See also t.isClassExpression(node, opts) and t.assertClassExpression(node, opts).
Aliases: Scopable, Class, Expression, Pureish
-
id:Identifier(default:null) -
superClass:Expression(default:null) -
body:ClassBody(required) -
decorators:Array<Decorator>(default:null) -
implements:Array<TSExpressionWithTypeArguments | ClassImplements>(default:null) -
mixins(default:null) -
superTypeParameters:TypeParameterInstantiation | TSTypeParameterInstantiation(default:null) -
typeParameters:TypeParameterDeclaration | TSTypeParameterDeclaration | Noop(default:null) -
- *
classImplements
javascript
t.classImplements(id, typeParameters)
See also t.isClassImplements(node, opts) and t.assertClassImplements(node, opts).
Aliases: Flow
-
id:Identifier(required) -
typeParameters:TypeParameterInstantiation(default:null) -
- *
classMethod
javascript
t.classMethod(kind, key, params, body, computed, static)
See also t.isClassMethod(node, opts) and t.assertClassMethod(node, opts).
Aliases: Function, Scopable, BlockParent, FunctionParent, Method
-
kind:"get" | "set" | "method" | "constructor"(default:'method') -
key: if computed thenExpressionelseIdentifier | Literal(required) -
params:Array<LVal>(required) -
body:BlockStatement(required) -
computed:boolean(default:false) -
static:boolean(default:null) -
abstract:boolean(default:null) -
access:"public" | "private" | "protected"(default:null) -
accessibility:"public" | "private" | "protected"(default:null) -
async:boolean(default:false) -
decorators:Array<Decorator>(default:null) -
generator:boolean(default:false) -
optional:boolean(default:null) -
returnType:TypeAnnotation | TSTypeAnnotation | Noop(default:null) -
typeParameters:TypeParameterDeclaration | TSTypeParameterDeclaration | Noop(default:null) -
- *
classPrivateProperty
javascript
t.classPrivateProperty(key, value)
See also t.isClassPrivateProperty(node, opts) and t.assertClassPrivateProperty(node, opts).
Aliases: Property, Private
-
key:PrivateName(required) -
value:Expression(default:null) -
- *
classProperty
javascript
t.classProperty(key, value, typeAnnotation, decorators, computed)
See also t.isClassProperty(node, opts) and t.assertClassProperty(node, opts).
Aliases: Property
-
key:Identifier | StringLiteral | NumericLiteral | Expression(required) -
value:Expression(default:null) -
typeAnnotation:TypeAnnotation | TSTypeAnnotation | Noop(default:null) -
decorators:Array<Decorator>(default:null) -
computed:boolean(default:false) -
abstract:boolean(default:null) -
accessibility:"public" | "private" | "protected"(default:null) -
definite:boolean(default:null) -
optional:boolean(default:null) -
readonly:boolean(default:null) -
static:boolean(default:null) -
- *
conditionalExpression
javascript
t.conditionalExpression(test, consequent, alternate)
See also t.isConditionalExpression(node, opts) and t.assertConditionalExpression(node, opts).
Aliases: Expression, Conditional
-
test:Expression(required) -
consequent:Expression(required) -
alternate:Expression(required) -
- *
continueStatement
javascript
t.continueStatement(label)
See also t.isContinueStatement(node, opts) and t.assertContinueStatement(node, opts).
Aliases: Statement, Terminatorless, CompletionStatement
-
label:Identifier(default:null) -
- *
debuggerStatement
javascript
t.debuggerStatement()
See also t.isDebuggerStatement(node, opts) and t.assertDebuggerStatement(node, opts).
Aliases: Statement
declareClass
javascript
t.declareClass(id, typeParameters, extends, body)
See also t.isDeclareClass(node, opts) and t.assertDeclareClass(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
id:Identifier(required) -
typeParameters:TypeParameterInstantiation(default:null) -
extends:Array<InterfaceExtends>(default:null) -
body:ObjectTypeAnnotation(required) -
implements:Array<ClassImplements>(default:null) -
mixins:Array<InterfaceExtends>(default:null) -
- *
declareExportAllDeclaration
javascript
t.declareExportAllDeclaration(source)
See also t.isDeclareExportAllDeclaration(node, opts) and t.assertDeclareExportAllDeclaration(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
source:StringLiteral(required) -
exportKind:["type","value"](default:null) -
- *
declareExportDeclaration
javascript
t.declareExportDeclaration(declaration, specifiers, source)
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一个致力于帮助开发者用代码改变世界为使命的平台
See also t.isDeclareExportDeclaration(node, opts) and t.assertDeclareExportDeclaration(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
declaration:Flow(default:null) -
specifiers:Array<ExportSpecifier | ExportNamespaceSpecifier>(default:null) -
source:StringLiteral(default:null) -
default:boolean(default:null) -
- *
declareFunction
javascript
t.declareFunction(id)
See also t.isDeclareFunction(node, opts) and t.assertDeclareFunction(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
id:Identifier(required) -
predicate:DeclaredPredicate(default:null) -
- *
declareInterface
javascript
t.declareInterface(id, typeParameters, extends, body)
See also t.isDeclareInterface(node, opts) and t.assertDeclareInterface(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
id:Identifier(required) -
typeParameters:TypeParameterDeclaration(default:null) -
extends:Array<InterfaceExtends>(default:null) -
body:ObjectTypeAnnotation(required) -
implements:Array<ClassImplements>(default:null) -
mixins:Array<InterfaceExtends>(default:null) -
- *
declareModule
javascript
t.declareModule(id, body, kind)
See also t.isDeclareModule(node, opts) and t.assertDeclareModule(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
id:Identifier | StringLiteral(required) -
body:BlockStatement(required) -
kind:"CommonJS" | "ES"(default:null) -
- *
declareModuleExports
javascript
t.declareModuleExports(typeAnnotation)
See also t.isDeclareModuleExports(node, opts) and t.assertDeclareModuleExports(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
typeAnnotation:TypeAnnotation(required) -
- *
declareOpaqueType
javascript
t.declareOpaqueType(id, typeParameters, supertype)
See also t.isDeclareOpaqueType(node, opts) and t.assertDeclareOpaqueType(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
id:Identifier(required) -
typeParameters:TypeParameterDeclaration(default:null) -
supertype:FlowType(default:null) -
- *
declareTypeAlias
javascript
t.declareTypeAlias(id, typeParameters, right)
See also t.isDeclareTypeAlias(node, opts) and t.assertDeclareTypeAlias(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
id:Identifier(required) -
typeParameters:TypeParameterDeclaration(default:null) -
right:FlowType(required) -
- *
declareVariable
javascript
t.declareVariable(id)
See also t.isDeclareVariable(node, opts) and t.assertDeclareVariable(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
id:Identifier(required) -
- *
declaredPredicate
javascript
t.declaredPredicate(value)
See also t.isDeclaredPredicate(node, opts) and t.assertDeclaredPredicate(node, opts).
Aliases: Flow, FlowPredicate
-
value:Flow(required) -
- *
decorator
javascript
t.decorator(expression)
See also t.isDecorator(node, opts) and t.assertDecorator(node, opts).
-
expression:Expression(required) -
- *
directive
javascript
t.directive(value)
See also t.isDirective(node, opts) and t.assertDirective(node, opts).
-
value:DirectiveLiteral(required) -
- *
directiveLiteral
javascript
t.directiveLiteral(value)
See also t.isDirectiveLiteral(node, opts) and t.assertDirectiveLiteral(node, opts).
-
value:string(required) -
- *
doExpression
javascript
t.doExpression(body)
See also t.isDoExpression(node, opts) and t.assertDoExpression(node, opts).
Aliases: Expression
-
body:BlockStatement(required) -
- *
doWhileStatement
javascript
t.doWhileStatement(test, body)
See also t.isDoWhileStatement(node, opts) and t.assertDoWhileStatement(node, opts).
Aliases: Statement, BlockParent, Loop, While, Scopable
-
test:Expression(required) -
body:Statement(required) -
- *
emptyStatement
javascript
t.emptyStatement()
See also t.isEmptyStatement(node, opts) and t.assertEmptyStatement(node, opts).
Aliases: Statement
emptyTypeAnnotation
javascript
t.emptyTypeAnnotation()
See also t.isEmptyTypeAnnotation(node, opts) and t.assertEmptyTypeAnnotation(node, opts).
Aliases: Flow, FlowType, FlowBaseAnnotation
existsTypeAnnotation
javascript
t.existsTypeAnnotation()
See also t.isExistsTypeAnnotation(node, opts) and t.assertExistsTypeAnnotation(node, opts).
Aliases: Flow, FlowType
exportAllDeclaration
javascript
t.exportAllDeclaration(source)
See also t.isExportAllDeclaration(node, opts) and t.assertExportAllDeclaration(node, opts).
Aliases: Statement, Declaration, ModuleDeclaration, ExportDeclaration
-
source:StringLiteral(required) -
- *
exportDefaultDeclaration
javascript
t.exportDefaultDeclaration(declaration)
See also t.isExportDefaultDeclaration(node, opts) and t.assertExportDefaultDeclaration(node, opts).
Aliases: Statement, Declaration, ModuleDeclaration, ExportDeclaration
-
declaration:FunctionDeclaration | TSDeclareFunction | ClassDeclaration | Expression(required) -
- *
exportDefaultSpecifier
javascript
t.exportDefaultSpecifier(exported)
See also t.isExportDefaultSpecifier(node, opts) and t.assertExportDefaultSpecifier(node, opts).
Aliases: ModuleSpecifier
-
exported:Identifier(required) -
- *
exportNamedDeclaration
javascript
t.exportNamedDeclaration(declaration, specifiers, source)
See also t.isExportNamedDeclaration(node, opts) and t.assertExportNamedDeclaration(node, opts).
Aliases: Statement, Declaration, ModuleDeclaration, ExportDeclaration
-
declaration:Declaration(default:null) -
specifiers:Array<ExportSpecifier | ExportDefaultSpecifier | ExportNamespaceSpecifier>(required) -
source:StringLiteral(default:null) -
- *
exportNamespaceSpecifier
javascript
t.exportNamespaceSpecifier(exported)
See also t.isExportNamespaceSpecifier(node, opts) and t.assertExportNamespaceSpecifier(node, opts).
Aliases: ModuleSpecifier
-
exported:Identifier(required) -
- *
exportSpecifier
javascript
t.exportSpecifier(local, exported)
See also t.isExportSpecifier(node, opts) and t.assertExportSpecifier(node, opts).
Aliases: ModuleSpecifier
-
local:Identifier(required) -
exported:Identifier(required) -
- *
expressionStatement
javascript
t.expressionStatement(expression)
See also t.isExpressionStatement(node, opts) and t.assertExpressionStatement(node, opts).
Aliases: Statement, ExpressionWrapper
-
expression:Expression(required) -
- *
file
javascript
t.file(program, comments, tokens)
See also t.isFile(node, opts) and t.assertFile(node, opts).
-
program:Program(required) -
comments(required) -
tokens(required) -
- *
forInStatement
javascript
t.forInStatement(left, right, body)
See also t.isForInStatement(node, opts) and t.assertForInStatement(node, opts).
Aliases: Scopable, Statement, For, BlockParent, Loop, ForXStatement
-
left:VariableDeclaration | LVal(required) -
right:Expression(required) -
body:Statement(required) -
- *
forOfStatement
javascript
t.forOfStatement(left, right, body)
See also t.isForOfStatement(node, opts) and t.assertForOfStatement(node, opts).
Aliases: Scopable, Statement, For, BlockParent, Loop, ForXStatement
-
left:VariableDeclaration | LVal(required) -
right:Expression(required) -
body:Statement(required) -
await:boolean(default:false) -
- *
forStatement
javascript
t.forStatement(init, test, update, body)
See also t.isForStatement(node, opts) and t.assertForStatement(node, opts).
Aliases: Scopable, Statement, For, BlockParent, Loop
-
init:VariableDeclaration | Expression(default:null) -
test:Expression(default:null) -
update:Expression(default:null) -
body:Statement(required) -
- *
functionDeclaration
javascript
t.functionDeclaration(id, params, body, generator, async)
See also t.isFunctionDeclaration(node, opts) and t.assertFunctionDeclaration(node, opts).
Aliases: Scopable, Function, BlockParent, FunctionParent, Statement, Pureish, Declaration
-
id:Identifier(default:null) -
params:Array<LVal>(required) -
body:BlockStatement(required) -
generator:boolean(default:false) -
async:boolean(default:false) -
declare:boolean(default:null) -
returnType:TypeAnnotation | TSTypeAnnotation | Noop(default:null) -
typeParameters:TypeParameterDeclaration | TSTypeParameterDeclaration | Noop(default:null) -
- *
functionExpression
javascript
t.functionExpression(id, params, body, generator, async)
See also t.isFunctionExpression(node, opts) and t.assertFunctionExpression(node, opts).
Aliases: Scopable, Function, BlockParent, FunctionParent, Expression, Pureish
-
id:Identifier(default:null) -
params:Array<LVal>(required) -
body:BlockStatement(required) -
generator:boolean(default:false) -
async:boolean(default:false) -
returnType:TypeAnnotation | TSTypeAnnotation | Noop(default:null) -
typeParameters:TypeParameterDeclaration | TSTypeParameterDeclaration | Noop(default:null) -
- *
functionTypeAnnotation
javascript
t.functionTypeAnnotation(typeParameters, params, rest, returnType)
See also t.isFunctionTypeAnnotation(node, opts) and t.assertFunctionTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
typeParameters:TypeParameterDeclaration(default:null) -
params:Array<FunctionTypeParam>(required) -
rest:FunctionTypeParam(default:null) -
returnType:FlowType(required) -
- *
functionTypeParam
javascript
t.functionTypeParam(name, typeAnnotation)
See also t.isFunctionTypeParam(node, opts) and t.assertFunctionTypeParam(node, opts).
Aliases: Flow
-
name:Identifier(default:null) -
typeAnnotation:FlowType(required) -
optional:boolean(default:null) -
- *
genericTypeAnnotation
javascript
t.genericTypeAnnotation(id, typeParameters)
See also t.isGenericTypeAnnotation(node, opts) and t.assertGenericTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
id:Identifier(required) -
typeParameters:TypeParameterInstantiation(default:null) -
- *
identifier
javascript
t.identifier(name)
See also t.isIdentifier(node, opts) and t.assertIdentifier(node, opts).
Aliases: Expression, PatternLike, LVal, TSEntityName
-
name:string(required) -
decorators:Array<Decorator>(default:null) -
optional:boolean(default:null) -
typeAnnotation:TypeAnnotation | TSTypeAnnotation | Noop(default:null) -
- *
ifStatement
javascript
t.ifStatement(test, consequent, alternate)
See also t.isIfStatement(node, opts) and t.assertIfStatement(node, opts).
Aliases: Statement, Conditional
-
test:Expression(required) -
consequent:Statement(required) -
alternate:Statement(default:null) -
- *
import
javascript
t.import()
See also t.isImport(node, opts) and t.assertImport(node, opts).
Aliases: Expression
importDeclaration
javascript
t.importDeclaration(specifiers, source)
See also t.isImportDeclaration(node, opts) and t.assertImportDeclaration(node, opts).
Aliases: Statement, Declaration, ModuleDeclaration
-
specifiers:Array<ImportSpecifier | ImportDefaultSpecifier | ImportNamespaceSpecifier>(required) -
source:StringLiteral(required) -
- *
importDefaultSpecifier
javascript
t.importDefaultSpecifier(local)
See also t.isImportDefaultSpecifier(node, opts) and t.assertImportDefaultSpecifier(node, opts).
Aliases: ModuleSpecifier
-
local:Identifier(required) -
- *
importNamespaceSpecifier
javascript
t.importNamespaceSpecifier(local)
See also t.isImportNamespaceSpecifier(node, opts) and t.assertImportNamespaceSpecifier(node, opts).
Aliases: ModuleSpecifier
-
local:Identifier(required) -
- *
importSpecifier
javascript
t.importSpecifier(local, imported)
See also t.isImportSpecifier(node, opts) and t.assertImportSpecifier(node, opts).
Aliases: ModuleSpecifier
-
local:Identifier(required) -
imported:Identifier(required) -
importKind:null | "type" | "typeof"(default:null) -
- *
inferredPredicate
javascript
t.inferredPredicate()
See also t.isInferredPredicate(node, opts) and t.assertInferredPredicate(node, opts).
Aliases: Flow, FlowPredicate
interfaceDeclaration
javascript
t.interfaceDeclaration(id, typeParameters, extends, body)
See also t.isInterfaceDeclaration(node, opts) and t.assertInterfaceDeclaration(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
id:Identifier(required) -
typeParameters:TypeParameterDeclaration(default:null) -
extends:Array<InterfaceExtends>(default:null) -
body:ObjectTypeAnnotation(required) -
implements:Array<ClassImplements>(default:null) -
mixins:Array<InterfaceExtends>(default:null) -
- *
interfaceExtends
javascript
t.interfaceExtends(id, typeParameters)
See also t.isInterfaceExtends(node, opts) and t.assertInterfaceExtends(node, opts).
Aliases: Flow
-
id:Identifier(required) -
typeParameters:TypeParameterInstantiation(default:null) -
- *
interfaceTypeAnnotation
javascript
t.interfaceTypeAnnotation(extends, body)
See also t.isInterfaceTypeAnnotation(node, opts) and t.assertInterfaceTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
extends:Array<InterfaceExtends>(default:null) -
body:ObjectTypeAnnotation(required) -
- *
interpreterDirective
javascript
t.interpreterDirective(value)
See also t.isInterpreterDirective(node, opts) and t.assertInterpreterDirective(node, opts).
-
value:string(required) -
- *
intersectionTypeAnnotation
javascript
t.intersectionTypeAnnotation(types)
See also t.isIntersectionTypeAnnotation(node, opts) and t.assertIntersectionTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
types:Array<FlowType>(required) -
- *
jSXAttribute
javascript
t.jsxAttribute(name, value)
See also t.isJSXAttribute(node, opts) and t.assertJSXAttribute(node, opts).
Aliases: JSX, Immutable
-
name:JSXIdentifier | JSXNamespacedName(required) -
value:JSXElement | JSXFragment | StringLiteral | JSXExpressionContainer(default:null) -
- *
jSXClosingElement
javascript
t.jsxClosingElement(name)
See also t.isJSXClosingElement(node, opts) and t.assertJSXClosingElement(node, opts).
Aliases: JSX, Immutable
-
name:JSXIdentifier | JSXMemberExpression(required) -
- *
jSXClosingFragment
javascript
t.jsxClosingFragment()
See also t.isJSXClosingFragment(node, opts) and t.assertJSXClosingFragment(node, opts).
Aliases: JSX, Immutable
jSXElement
javascript
t.jsxElement(openingElement, closingElement, children, selfClosing)
See also t.isJSXElement(node, opts) and t.assertJSXElement(node, opts).
Aliases: JSX, Immutable, Expression
-
openingElement:JSXOpeningElement(required) -
closingElement:JSXClosingElement(default:null) -
children:Array<JSXText | JSXExpressionContainer | JSXSpreadChild | JSXElement | JSXFragment>(required) -
selfClosing(required) -
- *
jSXEmptyExpression
javascript
t.jsxEmptyExpression()
See also t.isJSXEmptyExpression(node, opts) and t.assertJSXEmptyExpression(node, opts).
Aliases: JSX
jSXExpressionContainer
javascript
t.jsxExpressionContainer(expression)
See also t.isJSXExpressionContainer(node, opts) and t.assertJSXExpressionContainer(node, opts).
Aliases: JSX, Immutable
-
expression:Expression(required) -
- *
jSXFragment
javascript
t.jsxFragment(openingFragment, closingFragment, children)
See also t.isJSXFragment(node, opts) and t.assertJSXFragment(node, opts).
Aliases: JSX, Immutable, Expression
-
openingFragment:JSXOpeningFragment(required) -
closingFragment:JSXClosingFragment(required) -
children:Array<JSXText | JSXExpressionContainer | JSXSpreadChild | JSXElement | JSXFragment>(required) -
- *
jSXIdentifier
javascript
t.jsxIdentifier(name)
See also t.isJSXIdentifier(node, opts) and t.assertJSXIdentifier(node, opts).
Aliases: JSX
-
name:string(required) -
- *
jSXMemberExpression
javascript
t.jsxMemberExpression(object, property)
See also t.isJSXMemberExpression(node, opts) and t.assertJSXMemberExpression(node, opts).
Aliases: JSX
-
object:JSXMemberExpression | JSXIdentifier(required) -
property:JSXIdentifier(required) -
- *
jSXNamespacedName
javascript
t.jsxNamespacedName(namespace, name)
See also t.isJSXNamespacedName(node, opts) and t.assertJSXNamespacedName(node, opts).
Aliases: JSX
-
namespace:JSXIdentifier(required) -
name:JSXIdentifier(required) -
- *
jSXOpeningElement
javascript
t.jsxOpeningElement(name, attributes, selfClosing)
See also t.isJSXOpeningElement(node, opts) and t.assertJSXOpeningElement(node, opts).
Aliases: JSX, Immutable
-
name:JSXIdentifier | JSXMemberExpression(required) -
attributes:Array<JSXAttribute | JSXSpreadAttribute>(required) -
selfClosing:boolean(default:false) -
- *
jSXOpeningFragment
javascript
t.jsxOpeningFragment()
See also t.isJSXOpeningFragment(node, opts) and t.assertJSXOpeningFragment(node, opts).
Aliases: JSX, Immutable
jSXSpreadAttribute
javascript
t.jsxSpreadAttribute(argument)
See also t.isJSXSpreadAttribute(node, opts) and t.assertJSXSpreadAttribute(node, opts).
Aliases: JSX
-
argument:Expression(required) -
- *
jSXSpreadChild
javascript
t.jsxSpreadChild(expression)
See also t.isJSXSpreadChild(node, opts) and t.assertJSXSpreadChild(node, opts).
Aliases: JSX, Immutable
-
expression:Expression(required) -
- *
jSXText
javascript
t.jsxText(value)
See also t.isJSXText(node, opts) and t.assertJSXText(node, opts).
Aliases: JSX, Immutable
-
value:string(required) -
- *
labeledStatement
javascript
t.labeledStatement(label, body)
See also t.isLabeledStatement(node, opts) and t.assertLabeledStatement(node, opts).
Aliases: Statement
-
label:Identifier(required) -
body:Statement(required) -
- *
logicalExpression
javascript
t.logicalExpression(operator, left, right)
See also t.isLogicalExpression(node, opts) and t.assertLogicalExpression(node, opts).
Aliases: Binary, Expression
-
operator:"||" | "&&" | "??"(required) -
left:Expression(required) -
right:Expression(required) -
- *
memberExpression
javascript
t.memberExpression(object, property, computed, optional)
See also t.isMemberExpression(node, opts) and t.assertMemberExpression(node, opts).
Aliases: Expression, LVal
-
object:Expression(required) -
property: if computed thenExpressionelseIdentifier(required) -
computed:boolean(default:false) -
optional:true | false(default:null) -
- *
metaProperty
javascript
t.metaProperty(meta, property)
See also t.isMetaProperty(node, opts) and t.assertMetaProperty(node, opts).
Aliases: Expression
-
meta:Identifier(required) -
property:Identifier(required) -
- *
mixedTypeAnnotation
javascript
t.mixedTypeAnnotation()
See also t.isMixedTypeAnnotation(node, opts) and t.assertMixedTypeAnnotation(node, opts).
Aliases: Flow, FlowType, FlowBaseAnnotation
newExpression
javascript
t.newExpression(callee, arguments)
See also t.isNewExpression(node, opts) and t.assertNewExpression(node, opts).
Aliases: Expression
-
callee:Expression(required) -
arguments:Array<Expression | SpreadElement | JSXNamespacedName>(required) -
optional:true | false(default:null) -
typeArguments:TypeParameterInstantiation(default:null) -
typeParameters:TSTypeParameterInstantiation(default:null) -
- *
noop
javascript
t.noop()
See also t.isNoop(node, opts) and t.assertNoop(node, opts).
nullLiteral
javascript
t.nullLiteral()
See also t.isNullLiteral(node, opts) and t.assertNullLiteral(node, opts).
Aliases: Expression, Pureish, Literal, Immutable
nullLiteralTypeAnnotation
javascript
t.nullLiteralTypeAnnotation()
See also t.isNullLiteralTypeAnnotation(node, opts) and t.assertNullLiteralTypeAnnotation(node, opts).
Aliases: Flow, FlowType, FlowBaseAnnotation
nullableTypeAnnotation
javascript
t.nullableTypeAnnotation(typeAnnotation)
See also t.isNullableTypeAnnotation(node, opts) and t.assertNullableTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
typeAnnotation:FlowType(required) -
- *
numberLiteralTypeAnnotation
javascript
t.numberLiteralTypeAnnotation(value)
See also t.isNumberLiteralTypeAnnotation(node, opts) and t.assertNumberLiteralTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
value:number(required) -
- *
numberTypeAnnotation
javascript
t.numberTypeAnnotation()
See also t.isNumberTypeAnnotation(node, opts) and t.assertNumberTypeAnnotation(node, opts).
Aliases: Flow, FlowType, FlowBaseAnnotation
numericLiteral
javascript
t.numericLiteral(value)
See also t.isNumericLiteral(node, opts) and t.assertNumericLiteral(node, opts).
Aliases: Expression, Pureish, Literal, Immutable
-
value:number(required) -
- *
objectExpression
javascript
t.objectExpression(properties)
See also t.isObjectExpression(node, opts) and t.assertObjectExpression(node, opts).
Aliases: Expression
-
properties:Array<ObjectMethod | ObjectProperty | SpreadElement>(required) -
- *
objectMethod
javascript
t.objectMethod(kind, key, params, body, computed)
See also t.isObjectMethod(node, opts) and t.assertObjectMethod(node, opts).
Aliases: UserWhitespacable, Function, Scopable, BlockParent, FunctionParent, Method, ObjectMember
-
kind:"method" | "get" | "set"(default:'method') -
key: if computed thenExpressionelseIdentifier | Literal(required) -
params:Array<LVal>(required) -
body:BlockStatement(required) -
computed:boolean(default:false) -
async:boolean(default:false) -
decorators:Array<Decorator>(default:null) -
generator:boolean(default:false) -
returnType:TypeAnnotation | TSTypeAnnotation | Noop(default:null) -
typeParameters:TypeParameterDeclaration | TSTypeParameterDeclaration | Noop(default:null) -
- *
objectPattern
javascript
t.objectPattern(properties)
See also t.isObjectPattern(node, opts) and t.assertObjectPattern(node, opts).
Aliases: Pattern, PatternLike, LVal
-
properties:Array<RestElement | ObjectProperty>(required) -
decorators:Array<Decorator>(default:null) -
typeAnnotation:TypeAnnotation | TSTypeAnnotation | Noop(default:null) -
- *
objectProperty
javascript
t.objectProperty(key, value, computed, shorthand, decorators)
See also t.isObjectProperty(node, opts) and t.assertObjectProperty(node, opts).
Aliases: UserWhitespacable, Property, ObjectMember
-
key: if computed thenExpressionelseIdentifier | Literal(required) -
value:Expression | PatternLike(required) -
computed:boolean(default:false) -
shorthand:boolean(default:false) -
decorators:Array<Decorator>(default:null) -
- *
objectTypeAnnotation
javascript
t.objectTypeAnnotation(properties, indexers, callProperties, internalSlots, exact)
See also t.isObjectTypeAnnotation(node, opts) and t.assertObjectTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
properties:Array<ObjectTypeProperty | ObjectTypeSpreadProperty>(required) -
indexers:Array<ObjectTypeIndexer>(default:null) -
callProperties:Array<ObjectTypeCallProperty>(default:null) -
internalSlots:Array<ObjectTypeInternalSlot>(default:null) -
exact:boolean(default:false) -
- *
objectTypeCallProperty
javascript
t.objectTypeCallProperty(value)
See also t.isObjectTypeCallProperty(node, opts) and t.assertObjectTypeCallProperty(node, opts).
Aliases: Flow, UserWhitespacable
-
value:FlowType(required) -
static:boolean(default:null) -
- *
objectTypeIndexer
javascript
t.objectTypeIndexer(id, key, value, variance)
See also t.isObjectTypeIndexer(node, opts) and t.assertObjectTypeIndexer(node, opts).
Aliases: Flow, UserWhitespacable
-
id:Identifier(default:null) -
key:FlowType(required) -
value:FlowType(required) -
variance:Variance(default:null) -
static:boolean(default:null) -
- *
objectTypeInternalSlot
javascript
t.objectTypeInternalSlot(id, value, optional, static, method)
See also t.isObjectTypeInternalSlot(node, opts) and t.assertObjectTypeInternalSlot(node, opts).
Aliases: Flow, UserWhitespacable
-
id:Identifier(required) -
value:FlowType(required) -
optional:boolean(required) -
static:boolean(required) -
method:boolean(required) -
- *
objectTypeProperty
javascript
t.objectTypeProperty(key, value, variance)
See also t.isObjectTypeProperty(node, opts) and t.assertObjectTypeProperty(node, opts).
Aliases: Flow, UserWhitespacable
-
key:Identifier | StringLiteral(required) -
value:FlowType(required) -
variance:Variance(default:null) -
kind:"init" | "get" | "set"(default:null) -
optional:boolean(default:null) -
proto:boolean(default:null) -
static:boolean(default:null) -
- *
objectTypeSpreadProperty
javascript
t.objectTypeSpreadProperty(argument)
See also t.isObjectTypeSpreadProperty(node, opts) and t.assertObjectTypeSpreadProperty(node, opts).
Aliases: Flow, UserWhitespacable
-
argument:FlowType(required) -
- *
opaqueType
javascript
t.opaqueType(id, typeParameters, supertype, impltype)
See also t.isOpaqueType(node, opts) and t.assertOpaqueType(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
id:Identifier(required) -
typeParameters:TypeParameterDeclaration(default:null) -
supertype:FlowType(default:null) -
impltype:FlowType(required) -
- *
optionalCallExpression
javascript
t.optionalCallExpression(callee, arguments, optional)
See also t.isOptionalCallExpression(node, opts) and t.assertOptionalCallExpression(node, opts).
Aliases: Expression
-
callee:Expression(required) -
arguments:Array<Expression | SpreadElement | JSXNamespacedName>(required) -
optional:boolean(required) -
typeArguments:TypeParameterInstantiation(default:null) -
typeParameters:TSTypeParameterInstantiation(default:null) -
- *
optionalMemberExpression
javascript
t.optionalMemberExpression(object, property, computed, optional)
See also t.isOptionalMemberExpression(node, opts) and t.assertOptionalMemberExpression(node, opts).
Aliases: Expression
-
object:Expression(required) -
property:any(required) -
computed:boolean(default:false) -
optional:boolean(required) -
- *
parenthesizedExpression
javascript
t.parenthesizedExpression(expression)
See also t.isParenthesizedExpression(node, opts) and t.assertParenthesizedExpression(node, opts).
Aliases: Expression, ExpressionWrapper
-
expression:Expression(required) -
- *
privateName
javascript
t.privateName(id)
See also t.isPrivateName(node, opts) and t.assertPrivateName(node, opts).
Aliases: Private
-
id:Identifier(required) -
- *
program
javascript
t.program(body, directives, sourceType, interpreter)
See also t.isProgram(node, opts) and t.assertProgram(node, opts).
Aliases: Scopable, BlockParent, Block
-
body:Array<Statement>(required) -
directives:Array<Directive>(default:[]) -
sourceType:"script" | "module"(default:'script') -
interpreter:InterpreterDirective(default:null) -
sourceFile:string(default:null) -
- *
qualifiedTypeIdentifier
javascript
t.qualifiedTypeIdentifier(id, qualification)
See also t.isQualifiedTypeIdentifier(node, opts) and t.assertQualifiedTypeIdentifier(node, opts).
Aliases: Flow
-
id:Identifier(required) -
qualification:Identifier | QualifiedTypeIdentifier(required) -
- *
regExpLiteral
javascript
t.regExpLiteral(pattern, flags)
See also t.isRegExpLiteral(node, opts) and t.assertRegExpLiteral(node, opts).
Aliases: Expression, Literal
-
pattern:string(required) -
flags:string(default:'') -
- *
restElement
javascript
t.restElement(argument)
See also t.isRestElement(node, opts) and t.assertRestElement(node, opts).
Aliases: LVal, PatternLike
-
argument:LVal(required) -
decorators:Array<Decorator>(default:null) -
typeAnnotation:TypeAnnotation | TSTypeAnnotation | Noop(default:null) -
- *
returnStatement
javascript
t.returnStatement(argument)
See also t.isReturnStatement(node, opts) and t.assertReturnStatement(node, opts).
Aliases: Statement, Terminatorless, CompletionStatement
-
argument:Expression(default:null) -
- *
sequenceExpression
javascript
t.sequenceExpression(expressions)
See also t.isSequenceExpression(node, opts) and t.assertSequenceExpression(node, opts).
Aliases: Expression
-
expressions:Array<Expression>(required) -
- *
spreadElement
javascript
t.spreadElement(argument)
See also t.isSpreadElement(node, opts) and t.assertSpreadElement(node, opts).
Aliases: UnaryLike
-
argument:Expression(required) -
- *
stringLiteral
javascript
t.stringLiteral(value)
See also t.isStringLiteral(node, opts) and t.assertStringLiteral(node, opts).
Aliases: Expression, Pureish, Literal, Immutable
-
value:string(required) -
- *
stringLiteralTypeAnnotation
javascript
t.stringLiteralTypeAnnotation(value)
See also t.isStringLiteralTypeAnnotation(node, opts) and t.assertStringLiteralTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
value:string(required) -
- *
stringTypeAnnotation
javascript
t.stringTypeAnnotation()
See also t.isStringTypeAnnotation(node, opts) and t.assertStringTypeAnnotation(node, opts).
Aliases: Flow, FlowType, FlowBaseAnnotation
super
javascript
t.super()
See also t.isSuper(node, opts) and t.assertSuper(node, opts).
Aliases: Expression
switchCase
javascript
t.switchCase(test, consequent)
See also t.isSwitchCase(node, opts) and t.assertSwitchCase(node, opts).
-
test:Expression(default:null) -
consequent:Array<Statement>(required) -
- *
switchStatement
javascript
t.switchStatement(discriminant, cases)
See also t.isSwitchStatement(node, opts) and t.assertSwitchStatement(node, opts).
Aliases: Statement, BlockParent, Scopable
-
discriminant:Expression(required) -
cases:Array<SwitchCase>(required) -
- *
tSAnyKeyword
javascript
t.tsAnyKeyword()
See also t.isTSAnyKeyword(node, opts) and t.assertTSAnyKeyword(node, opts).
Aliases: TSType
tSArrayType
javascript
t.tsArrayType(elementType)
See also t.isTSArrayType(node, opts) and t.assertTSArrayType(node, opts).
Aliases: TSType
-
elementType:TSType(required) -
- *
tSAsExpression
javascript
t.tsAsExpression(expression, typeAnnotation)
See also t.isTSAsExpression(node, opts) and t.assertTSAsExpression(node, opts).
Aliases: Expression
-
expression:Expression(required) -
typeAnnotation:TSType(required) -
- *
tSBooleanKeyword
javascript
t.tsBooleanKeyword()
See also t.isTSBooleanKeyword(node, opts) and t.assertTSBooleanKeyword(node, opts).
Aliases: TSType
tSCallSignatureDeclaration
javascript
t.tsCallSignatureDeclaration(typeParameters, parameters, typeAnnotation)
See also t.isTSCallSignatureDeclaration(node, opts) and t.assertTSCallSignatureDeclaration(node, opts).
Aliases: TSTypeElement
-
typeParameters:TSTypeParameterDeclaration(default:null) -
parameters:Array<Identifier | RestElement>(default:null) -
typeAnnotation:TSTypeAnnotation(default:null) -
- *
tSConditionalType
javascript
t.tsConditionalType(checkType, extendsType, trueType, falseType)
See also t.isTSConditionalType(node, opts) and t.assertTSConditionalType(node, opts).
Aliases: TSType
-
checkType:TSType(required) -
extendsType:TSType(required) -
trueType:TSType(required) -
falseType:TSType(required) -
- *
tSConstructSignatureDeclaration
javascript
t.tsConstructSignatureDeclaration(typeParameters, parameters, typeAnnotation)
See also t.isTSConstructSignatureDeclaration(node, opts) and t.assertTSConstructSignatureDeclaration(node, opts).
Aliases: TSTypeElement
-
typeParameters:TSTypeParameterDeclaration(default:null) -
parameters:Array<Identifier | RestElement>(default:null) -
typeAnnotation:TSTypeAnnotation(default:null) -
- *
tSConstructorType
javascript
t.tsConstructorType(typeParameters, typeAnnotation)
See also t.isTSConstructorType(node, opts) and t.assertTSConstructorType(node, opts).
Aliases: TSType
-
typeParameters:TSTypeParameterDeclaration(default:null) -
typeAnnotation:TSTypeAnnotation(default:null) -
parameters:Array<Identifier | RestElement>(default:null) -
- *
tSDeclareFunction
javascript
t.tsDeclareFunction(id, typeParameters, params, returnType)
See also t.isTSDeclareFunction(node, opts) and t.assertTSDeclareFunction(node, opts).
Aliases: Statement, Declaration
-
id:Identifier(default:null) -
typeParameters:TSTypeParameterDeclaration | Noop(default:null) -
params:Array<LVal>(required) -
returnType:TSTypeAnnotation | Noop(default:null) -
async:boolean(default:false) -
declare:boolean(default:null) -
generator:boolean(default:false) -
- *
tSDeclareMethod
javascript
t.tsDeclareMethod(decorators, key, typeParameters, params, returnType)
See also t.isTSDeclareMethod(node, opts) and t.assertTSDeclareMethod(node, opts).
-
decorators:Array<Decorator>(default:null) -
key:Identifier | StringLiteral | NumericLiteral | Expression(required) -
typeParameters:TSTypeParameterDeclaration | Noop(default:null) -
params:Array<LVal>(required) -
returnType:TSTypeAnnotation | Noop(default:null) -
abstract:boolean(default:null) -
access:"public" | "private" | "protected"(default:null) -
accessibility:"public" | "private" | "protected"(default:null) -
async:boolean(default:false) -
computed:boolean(default:false) -
generator:boolean(default:false) -
kind:"get" | "set" | "method" | "constructor"(default:'method') -
optional:boolean(default:null) -
static:boolean(default:null) -
- *
tSEnumDeclaration
javascript
t.tsEnumDeclaration(id, members)
See also t.isTSEnumDeclaration(node, opts) and t.assertTSEnumDeclaration(node, opts).
Aliases: Statement, Declaration
-
id:Identifier(required) -
members:Array<TSEnumMember>(required) -
const:boolean(default:null) -
declare:boolean(default:null) -
initializer:Expression(default:null) -
- *
tSEnumMember
javascript
t.tsEnumMember(id, initializer)
See also t.isTSEnumMember(node, opts) and t.assertTSEnumMember(node, opts).
-
id:Identifier | StringLiteral(required) -
initializer:Expression(default:null) -
- *
tSExportAssignment
javascript
t.tsExportAssignment(expression)
See also t.isTSExportAssignment(node, opts) and t.assertTSExportAssignment(node, opts).
Aliases: Statement
-
expression:Expression(required) -
- *
tSExpressionWithTypeArguments
javascript
t.tsExpressionWithTypeArguments(expression, typeParameters)
See also t.isTSExpressionWithTypeArguments(node, opts) and t.assertTSExpressionWithTypeArguments(node, opts).
Aliases: TSType
-
expression:TSEntityName(required) -
typeParameters:TSTypeParameterInstantiation(default:null) -
- *
tSExternalModuleReference
javascript
t.tsExternalModuleReference(expression)
See also t.isTSExternalModuleReference(node, opts) and t.assertTSExternalModuleReference(node, opts).
-
expression:StringLiteral(required) -
- *
tSFunctionType
javascript
t.tsFunctionType(typeParameters, typeAnnotation)
See also t.isTSFunctionType(node, opts) and t.assertTSFunctionType(node, opts).
Aliases: TSType
-
typeParameters:TSTypeParameterDeclaration(default:null) -
typeAnnotation:TSTypeAnnotation(default:null) -
parameters:Array<Identifier | RestElement>(default:null) -
- *
tSImportEqualsDeclaration
javascript
t.tsImportEqualsDeclaration(id, moduleReference)
See also t.isTSImportEqualsDeclaration(node, opts) and t.assertTSImportEqualsDeclaration(node, opts).
Aliases: Statement
-
id:Identifier(required) -
moduleReference:TSEntityName | TSExternalModuleReference(required) -
isExport:boolean(default:null) -
- *
tSIndexSignature
javascript
t.tsIndexSignature(parameters, typeAnnotation)
See also t.isTSIndexSignature(node, opts) and t.assertTSIndexSignature(node, opts).
Aliases: TSTypeElement
-
parameters:Array<Identifier>(required) -
typeAnnotation:TSTypeAnnotation(default:null) -
readonly:boolean(default:null) -
- *
tSIndexedAccessType
javascript
t.tsIndexedAccessType(objectType, indexType)
See also t.isTSIndexedAccessType(node, opts) and t.assertTSIndexedAccessType(node, opts).
Aliases: TSType
-
objectType:TSType(required) -
indexType:TSType(required) -
- *
tSInferType
javascript
t.tsInferType(typeParameter)
See also t.isTSInferType(node, opts) and t.assertTSInferType(node, opts).
Aliases: TSType
-
typeParameter:TSTypeParameter(required) -
- *
tSInterfaceBody
javascript
t.tsInterfaceBody(body)
See also t.isTSInterfaceBody(node, opts) and t.assertTSInterfaceBody(node, opts).
-
body:Array<TSTypeElement>(required) -
- *
tSInterfaceDeclaration
javascript
t.tsInterfaceDeclaration(id, typeParameters, extends, body)
See also t.isTSInterfaceDeclaration(node, opts) and t.assertTSInterfaceDeclaration(node, opts).
Aliases: Statement, Declaration
-
id:Identifier(required) -
typeParameters:TSTypeParameterDeclaration(default:null) -
extends:Array<TSExpressionWithTypeArguments>(default:null) -
body:TSInterfaceBody(required) -
declare:boolean(default:null) -
- *
tSIntersectionType
javascript
t.tsIntersectionType(types)
See also t.isTSIntersectionType(node, opts) and t.assertTSIntersectionType(node, opts).
Aliases: TSType
-
types:Array<TSType>(required) -
- *
tSLiteralType
javascript
t.tsLiteralType(literal)
See also t.isTSLiteralType(node, opts) and t.assertTSLiteralType(node, opts).
Aliases: TSType
-
literal:NumericLiteral | StringLiteral | BooleanLiteral(required) -
- *
tSMappedType
javascript
t.tsMappedType(typeParameter, typeAnnotation)
See also t.isTSMappedType(node, opts) and t.assertTSMappedType(node, opts).
Aliases: TSType
-
typeParameter:TSTypeParameter(required) -
typeAnnotation:TSType(default:null) -
optional:boolean(default:null) -
readonly:boolean(default:null) -
- *
tSMethodSignature
javascript
t.tsMethodSignature(key, typeParameters, parameters, typeAnnotation)
See also t.isTSMethodSignature(node, opts) and t.assertTSMethodSignature(node, opts).
Aliases: TSTypeElement
-
key:Expression(required) -
typeParameters:TSTypeParameterDeclaration(default:null) -
parameters:Array<Identifier | RestElement>(default:null) -
typeAnnotation:TSTypeAnnotation(default:null) -
computed:boolean(default:null) -
optional:boolean(default:null) -
- *
tSModuleBlock
javascript
t.tsModuleBlock(body)
See also t.isTSModuleBlock(node, opts) and t.assertTSModuleBlock(node, opts).
-
body:Array<Statement>(required) -
- *
tSModuleDeclaration
javascript
t.tsModuleDeclaration(id, body)
See also t.isTSModuleDeclaration(node, opts) and t.assertTSModuleDeclaration(node, opts).
Aliases: Statement, Declaration
-
id:Identifier | StringLiteral(required) -
body:TSModuleBlock | TSModuleDeclaration(required) -
declare:boolean(default:null) -
global:boolean(default:null) -
- *
tSNamespaceExportDeclaration
javascript
t.tsNamespaceExportDeclaration(id)
See also t.isTSNamespaceExportDeclaration(node, opts) and t.assertTSNamespaceExportDeclaration(node, opts).
Aliases: Statement
-
id:Identifier(required) -
- *
tSNeverKeyword
javascript
t.tsNeverKeyword()
See also t.isTSNeverKeyword(node, opts) and t.assertTSNeverKeyword(node, opts).
Aliases: TSType
tSNonNullExpression
javascript
t.tsNonNullExpression(expression)
See also t.isTSNonNullExpression(node, opts) and t.assertTSNonNullExpression(node, opts).
Aliases: Expression
-
expression:Expression(required) -
- *
tSNullKeyword
javascript
t.tsNullKeyword()
See also t.isTSNullKeyword(node, opts) and t.assertTSNullKeyword(node, opts).
Aliases: TSType
tSNumberKeyword
javascript
t.tsNumberKeyword()
See also t.isTSNumberKeyword(node, opts) and t.assertTSNumberKeyword(node, opts).
Aliases: TSType
tSObjectKeyword
javascript
t.tsObjectKeyword()
See also t.isTSObjectKeyword(node, opts) and t.assertTSObjectKeyword(node, opts).
Aliases: TSType
tSParameterProperty
javascript
t.tsParameterProperty(parameter)
See also t.isTSParameterProperty(node, opts) and t.assertTSParameterProperty(node, opts).
Aliases: LVal
-
parameter:Identifier | AssignmentPattern(required) -
accessibility:"public" | "private" | "protected"(default:null) -
readonly:boolean(default:null) -
- *
tSParenthesizedType
javascript
t.tsParenthesizedType(typeAnnotation)
See also t.isTSParenthesizedType(node, opts) and t.assertTSParenthesizedType(node, opts).
Aliases: TSType
-
typeAnnotation:TSType(required) -
- *
tSPropertySignature
javascript
t.tsPropertySignature(key, typeAnnotation, initializer)
See also t.isTSPropertySignature(node, opts) and t.assertTSPropertySignature(node, opts).
Aliases: TSTypeElement
-
key:Expression(required) -
typeAnnotation:TSTypeAnnotation(default:null) -
initializer:Expression(default:null) -
computed:boolean(default:null) -
optional:boolean(default:null) -
readonly:boolean(default:null) -
- *
tSQualifiedName
javascript
t.tsQualifiedName(left, right)
See also t.isTSQualifiedName(node, opts) and t.assertTSQualifiedName(node, opts).
Aliases: TSEntityName
-
left:TSEntityName(required) -
right:Identifier(required) -
- *
tSStringKeyword
javascript
t.tsStringKeyword()
See also t.isTSStringKeyword(node, opts) and t.assertTSStringKeyword(node, opts).
Aliases: TSType
tSSymbolKeyword
javascript
t.tsSymbolKeyword()
See also t.isTSSymbolKeyword(node, opts) and t.assertTSSymbolKeyword(node, opts).
Aliases: TSType
tSThisType
javascript
t.tsThisType()
See also t.isTSThisType(node, opts) and t.assertTSThisType(node, opts).
Aliases: TSType
tSTupleType
javascript
t.tsTupleType(elementTypes)
See also t.isTSTupleType(node, opts) and t.assertTSTupleType(node, opts).
Aliases: TSType
-
elementTypes:Array<TSType>(required) -
- *
tSTypeAliasDeclaration
javascript
t.tsTypeAliasDeclaration(id, typeParameters, typeAnnotation)
See also t.isTSTypeAliasDeclaration(node, opts) and t.assertTSTypeAliasDeclaration(node, opts).
Aliases: Statement, Declaration
-
id:Identifier(required) -
typeParameters:TSTypeParameterDeclaration(default:null) -
typeAnnotation:TSType(required) -
declare:boolean(default:null) -
- *
tSTypeAnnotation
javascript
t.tsTypeAnnotation(typeAnnotation)
See also t.isTSTypeAnnotation(node, opts) and t.assertTSTypeAnnotation(node, opts).
-
typeAnnotation:TSType(required) -
- *
tSTypeAssertion
javascript
t.tsTypeAssertion(typeAnnotation, expression)
See also t.isTSTypeAssertion(node, opts) and t.assertTSTypeAssertion(node, opts).
Aliases: Expression
-
typeAnnotation:TSType(required) -
expression:Expression(required) -
- *
tSTypeLiteral
javascript
t.tsTypeLiteral(members)
See also t.isTSTypeLiteral(node, opts) and t.assertTSTypeLiteral(node, opts).
Aliases: TSType
-
members:Array<TSTypeElement>(required) -
- *
tSTypeOperator
javascript
t.tsTypeOperator(typeAnnotation)
See also t.isTSTypeOperator(node, opts) and t.assertTSTypeOperator(node, opts).
Aliases: TSType
-
typeAnnotation:TSType(required) -
operator:string(default:null) -
- *
tSTypeParameter
javascript
t.tsTypeParameter(constraint, default)
See also t.isTSTypeParameter(node, opts) and t.assertTSTypeParameter(node, opts).
-
constraint:TSType(default:null) -
default:TSType(default:null) -
name:string(default:null) -
- *
tSTypeParameterDeclaration
javascript
t.tsTypeParameterDeclaration(params)
See also t.isTSTypeParameterDeclaration(node, opts) and t.assertTSTypeParameterDeclaration(node, opts).
-
params:Array<TSTypeParameter>(required) -
- *
tSTypeParameterInstantiation
javascript
t.tsTypeParameterInstantiation(params)
See also t.isTSTypeParameterInstantiation(node, opts) and t.assertTSTypeParameterInstantiation(node, opts).
-
params:Array<TSType>(required) -
- *
tSTypePredicate
javascript
t.tsTypePredicate(parameterName, typeAnnotation)
See also t.isTSTypePredicate(node, opts) and t.assertTSTypePredicate(node, opts).
Aliases: TSType
-
parameterName:Identifier | TSThisType(required) -
typeAnnotation:TSTypeAnnotation(required) -
- *
tSTypeQuery
javascript
t.tsTypeQuery(exprName)
See also t.isTSTypeQuery(node, opts) and t.assertTSTypeQuery(node, opts).
Aliases: TSType
-
exprName:TSEntityName(required) -
- *
tSTypeReference
javascript
t.tsTypeReference(typeName, typeParameters)
See also t.isTSTypeReference(node, opts) and t.assertTSTypeReference(node, opts).
Aliases: TSType
-
typeName:TSEntityName(required) -
typeParameters:TSTypeParameterInstantiation(default:null) -
- *
tSUndefinedKeyword
javascript
t.tsUndefinedKeyword()
See also t.isTSUndefinedKeyword(node, opts) and t.assertTSUndefinedKeyword(node, opts).
Aliases: TSType
tSUnionType
javascript
t.tsUnionType(types)
See also t.isTSUnionType(node, opts) and t.assertTSUnionType(node, opts).
Aliases: TSType
-
types:Array<TSType>(required) -
- *
tSUnknownType
javascript
t.tsUnknownType(types)
See also t.isTSUnknownType(node, opts) and t.assertTSUnknownType(node, opts).
Aliases: TSType
-
types:Array<TSType>(required) -
- *
tSVoidKeyword
javascript
t.tsVoidKeyword()
See also t.isTSVoidKeyword(node, opts) and t.assertTSVoidKeyword(node, opts).
Aliases: TSType
taggedTemplateExpression
javascript
t.taggedTemplateExpression(tag, quasi)
See also t.isTaggedTemplateExpression(node, opts) and t.assertTaggedTemplateExpression(node, opts).
Aliases: Expression
-
tag:Expression(required) -
quasi:TemplateLiteral(required) -
- *
templateElement
javascript
t.templateElement(value, tail)
See also t.isTemplateElement(node, opts) and t.assertTemplateElement(node, opts).
-
value(required) -
tail:boolean(default:false) -
- *
templateLiteral
javascript
t.templateLiteral(quasis, expressions)
See also t.isTemplateLiteral(node, opts) and t.assertTemplateLiteral(node, opts).
Aliases: Expression, Literal
-
quasis:Array<TemplateElement>(required) -
expressions:Array<Expression>(required) -
- *
thisExpression
javascript
t.thisExpression()
See also t.isThisExpression(node, opts) and t.assertThisExpression(node, opts).
Aliases: Expression
thisTypeAnnotation
javascript
t.thisTypeAnnotation()
See also t.isThisTypeAnnotation(node, opts) and t.assertThisTypeAnnotation(node, opts).
Aliases: Flow, FlowType, FlowBaseAnnotation
throwStatement
javascript
t.throwStatement(argument)
See also t.isThrowStatement(node, opts) and t.assertThrowStatement(node, opts).
Aliases: Statement, Terminatorless, CompletionStatement
-
argument:Expression(required) -
- *
tryStatement
javascript
t.tryStatement(block, handler, finalizer)
See also t.isTryStatement(node, opts) and t.assertTryStatement(node, opts).
Aliases: Statement
-
block:BlockStatement(required) -
handler:CatchClause(default:null) -
finalizer:BlockStatement(default:null) -
- *
tupleTypeAnnotation
javascript
t.tupleTypeAnnotation(types)
See also t.isTupleTypeAnnotation(node, opts) and t.assertTupleTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
types:Array<FlowType>(required) -
- *
typeAlias
javascript
t.typeAlias(id, typeParameters, right)
See also t.isTypeAlias(node, opts) and t.assertTypeAlias(node, opts).
Aliases: Flow, FlowDeclaration, Statement, Declaration
-
id:Identifier(required) -
typeParameters:TypeParameterDeclaration(default:null) -
right:FlowType(required) -
- *
typeAnnotation
javascript
t.typeAnnotation(typeAnnotation)
See also t.isTypeAnnotation(node, opts) and t.assertTypeAnnotation(node, opts).
Aliases: Flow
-
typeAnnotation:FlowType(required) -
- *
typeCastExpression
javascript
t.typeCastExpression(expression, typeAnnotation)
See also t.isTypeCastExpression(node, opts) and t.assertTypeCastExpression(node, opts).
Aliases: Flow, ExpressionWrapper, Expression
-
expression:Expression(required) -
typeAnnotation:TypeAnnotation(required) -
- *
typeParameter
javascript
t.typeParameter(bound, default, variance)
See also t.isTypeParameter(node, opts) and t.assertTypeParameter(node, opts).
Aliases: Flow
-
bound:TypeAnnotation(default:null) -
default:FlowType(default:null) -
variance:Variance(default:null) -
name:string(default:null) -
- *
typeParameterDeclaration
javascript
t.typeParameterDeclaration(params)
See also t.isTypeParameterDeclaration(node, opts) and t.assertTypeParameterDeclaration(node, opts).
Aliases: Flow
-
params:Array<TypeParameter>(required) -
- *
typeParameterInstantiation
javascript
t.typeParameterInstantiation(params)
See also t.isTypeParameterInstantiation(node, opts) and t.assertTypeParameterInstantiation(node, opts).
Aliases: Flow
-
params:Array<FlowType>(required) -
- *
typeofTypeAnnotation
javascript
t.typeofTypeAnnotation(argument)
See also t.isTypeofTypeAnnotation(node, opts) and t.assertTypeofTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
argument:FlowType(required) -
- *
unaryExpression
javascript
t.unaryExpression(operator, argument, prefix)
See also t.isUnaryExpression(node, opts) and t.assertUnaryExpression(node, opts).
Aliases: UnaryLike, Expression
-
operator:"void" | "throw" | "delete" | "!" | "+" | "-" | "~" | "typeof"(required) -
argument:Expression(required) -
prefix:boolean(default:true) -
- *
unionTypeAnnotation
javascript
t.unionTypeAnnotation(types)
See also t.isUnionTypeAnnotation(node, opts) and t.assertUnionTypeAnnotation(node, opts).
Aliases: Flow, FlowType
-
types:Array<FlowType>(required) -
- *
updateExpression
javascript
t.updateExpression(operator, argument, prefix)
See also t.isUpdateExpression(node, opts) and t.assertUpdateExpression(node, opts).
Aliases: Expression
-
operator:"++" | "--"(required) -
argument:Expression(required) -
prefix:boolean(default:false) -
- *
variableDeclaration
javascript
t.variableDeclaration(kind, declarations)
See also t.isVariableDeclaration(node, opts) and t.assertVariableDeclaration(node, opts).
Aliases: Statement, Declaration
-
kind:"var" | "let" | "const"(required) -
declarations:Array<VariableDeclarator>(required) -
declare:boolean(default:null) -
- *
variableDeclarator
javascript
t.variableDeclarator(id, init)
See also t.isVariableDeclarator(node, opts) and t.assertVariableDeclarator(node, opts).
-
id:LVal(required) -
init:Expression(default:null) -
definite:boolean(default:null) -
- *
variance
javascript
t.variance(kind)
See also t.isVariance(node, opts) and t.assertVariance(node, opts).
Aliases: Flow
-
kind:"minus" | "plus"(required) -
- *
voidTypeAnnotation
javascript
t.voidTypeAnnotation()
See also t.isVoidTypeAnnotation(node, opts) and t.assertVoidTypeAnnotation(node, opts).
Aliases: Flow, FlowType, FlowBaseAnnotation
whileStatement
javascript
t.whileStatement(test, body)
See also t.isWhileStatement(node, opts) and t.assertWhileStatement(node, opts).
Aliases: Statement, BlockParent, Loop, While, Scopable
-
test:Expression(required) -
body:BlockStatement | Statement(required) -
- *
withStatement
javascript
t.withStatement(object, body)
See also t.isWithStatement(node, opts) and t.assertWithStatement(node, opts).
Aliases: Statement
-
object:Expression(required) -
body:BlockStatement | Statement(required) -
- *
yieldExpression
javascript
t.yieldExpression(argument, delegate)
See also t.isYieldExpression(node, opts) and t.assertYieldExpression(node, opts).
Aliases: Expression, Terminatorless
-
argument:Expression(default:null) -
delegate:boolean(default:false) -
- *
来源：Js中文网 – 前端进阶资源教程
链接：https://www.javascriptc.com/docs/babel-manual/babel-types
