module

globals

Functions 16

addEventListener()
alert()
MDN Reference
clearImmediate()
Cancel an immediate function call by its immediate ID.
clearInterval()
MDN Reference
clearTimeout()
MDN Reference
confirm()
MDN Reference
fetch()
MDN Reference
postMessage()
Posts a message to the given window.
prompt()
MDN Reference
queueMicrotask()
MDN Reference
removeEventListener()
reportError()
MDN Reference
setImmediate()
Run a function immediately after main event loop is vacant
setInterval()
MDN Reference
setTimeout()
MDN Reference
structuredClone()
MDN Reference

Classes 53

class AbortController
A controller object that allows you to abort one or more DOM requests as and when desired.
class AbortSignal
A signal object that allows you to communicate with a DOM request (such as a Fetch) and abort it if required via an AbortController object.
class ArrayBuffer
Represents a raw buffer of binary data, which is used to store data for the different typed arrays.
class Blob
A file-like object of immutable, raw data.
class BroadcastChannel
MDN Reference
class ByteLengthQueuingStrategy
This Streams API interface provides a built-in byte length queuing strategy that can be used when constructing streams.
class CloseEvent
A CloseEvent is sent to clients using WebSockets when the connection is closed.
class CompressionStream
MDN Reference
class CountQueuingStrategy
This Streams API interface provides a built-in byte length queuing strategy that can be used when constructing streams.
class Crypto
Basic cryptography features available in the current context.
class CryptoKey
The CryptoKey dictionary of the Web Crypto API represents a cryptographic key.
class CustomEvent
MDN Reference
class DecompressionStream
MDN Reference
class DOMException
An abnormal event (called an exception) which occurs as a result of calling a method or accessing a property of a web API.
class ErrorEvent
Events providing information related to errors in scripts or in files.
class Event
An event which takes place in the DOM.
class EventTarget
EventTarget is a DOM interface implemented by objects that can receive events and may have listeners for them.
class File
Provides information about files and allows JavaScript in a web page to access their content.
class FormData
Provides a way to easily construct a set of key/value pairs representing form fields and their values, which can then be easily sent using the XMLHttpRequest.send() me…
class Headers
This Fetch API interface allows you to perform various actions on HTTP request and response headers.
class MessageChannel
This Channel Messaging API interface allows us to create a new message channel and send data through it via its two MessagePort properties.
class MessageEvent
A message received by a target object.
class MessagePort
This Channel Messaging API interface represents one of the two ports of a MessageChannel, allowing messages to be sent from one port and listening out for them arrivin…
class Navigator
The state and the identity of the user agent.
class Performance
Provides access to performance-related information for the current page.
class PerformanceEntry
Encapsulates a single performance metric that is part of the performance timeline.
class PerformanceMark
PerformanceMark is an abstract interface for PerformanceEntry objects with an entryType of "mark".
class PerformanceMeasure
PerformanceMeasure is an abstract interface for PerformanceEntry objects with an entryType of "measure".
class PerformanceObserver
MDN Reference
class PerformanceObserverEntryList
MDN Reference
class PerformanceResourceTiming
Enables retrieval and analysis of detailed network timing data regarding the loading of an application's resources.
class ReadableByteStreamController
MDN Reference
class ReadableStream
This Streams API interface represents a readable stream of byte data.
class ReadableStreamBYOBReader
MDN Reference
class ReadableStreamBYOBRequest
MDN Reference
class ReadableStreamDefaultController
MDN Reference
class ReadableStreamDefaultReader
MDN Reference
class Request
This Fetch API interface represents a resource request.
class Response
This Fetch API interface represents the response to a request.
class ShadowRealm
ShadowRealms are a distinct global environment, with its own global object containing its own intrinsics and built-ins (standard objects that are not bound to global v…
class SubtleCrypto
This Web Crypto API interface provides a number of low-level cryptographic functions.
class TextDecoder
A decoder for a specific method, that is a specific character encoding, like utf-8, iso-8859-2, koi8, cp1261, gbk, etc.
class TextDecoderStream
MDN Reference
class TextEncoder
TextEncoder takes a stream of code points as input and emits a stream of bytes.
class TextEncoderStream
MDN Reference
class TransformStream
MDN Reference
class TransformStreamDefaultController
MDN Reference
class Uint8Array
A typed array of 8-bit unsigned integer values.
class URL
The URL interface represents an object providing static methods used for creating object URLs.
class URLSearchParams
MDN Reference
class WritableStream
This Streams API interface provides a standard abstraction for writing streaming data to a destination, known as a sink.
class WritableStreamDefaultController
This Streams API interface represents a controller allowing control of a WritableStream's state.
class WritableStreamDefaultWriter
This Streams API interface is the object returned by WritableStream.getWriter() and once created locks the < writer to the WritableStream ensuring that no other stream…

Interfaces 44

interface AddEventListenerOptions
interface ArrayBufferConstructor
interface ArrayConstructor
interface BlobPropertyBag
interface BunFetchRequestInit
BunFetchRequestInit represents additional options that Bun supports in fetch() only.
interface BunFetchRequestInitTLS
Extends Bun.TLSOptions with extra properties that are only supported in fetch(url, {tls: ...})
interface Console
MDN Reference
interface ConsoleOptions
interface CryptoKeyPair
interface Dict
interface ErrnoException
interface Error
interface ErrorConstructor
interface ErrorOptions
interface EventListener
interface EventListenerObject
interface EventMap
interface EventSource
MDN Reference
interface EventSourceInit
interface FetchEvent
An event which takes place in the DOM.
interface ImportMeta
The type of import.meta.
interface ImportMetaEnv
interface Position
interface PromiseConstructor
Represents the completion of an asynchronous operation
interface QueuingStrategy
interface QueuingStrategyInit
interface QueuingStrategySize
interface ReadableStreamDefaultReadDoneResult
interface ReadableStreamDefaultReadValueResult
interface ReadableStreamDirectController
interface ReadableStreamGenericReader
interface ReadableWritablePair
interface ReadOnlyDict
interface RegExpConstructor
interface RequestInit
interface ResponseInit
interface SharedArrayBuffer
interface StreamPipeOptions
interface Timer
interface Transformer
interface Uint8ArrayConstructor
interface WebSocket
Provides the API for creating and managing a WebSocket connection to a server, as well as for sending and receiving data on the connection.
interface Worker
This Web Workers API interface represents a background task that can be easily created and can send messages back to its creator.
interface WorkerOptions
Bun's Web Worker constructor supports some extra options on top of the API browsers have.

Variables 10

const console
const crypto
MDN Reference
const Error
const exports
Same as module.exports
const Loader
Low-level JavaScriptCore API for accessing the native ES Module loader (not a Bun API)
const module
A reference to the current module.
const navigator
MDN Reference
const performance
MDN Reference
const require
NodeJS-style require function
const SharedArrayBuffer

Namespaces 3

namespace fetch
Bun's extensions of the fetch API
namespace setImmediate
namespace setTimeout