Web API
ウェブのコードを書く時は、数多くの Web API が利用できます。以下に、ウェブアプリやサイトを開発する際に利用することができる可能性があるすべてのインターフェイス（オブジェクト型）のリストを挙げます。
Web API は通常 JavaScript とともに使用されますが、常にそうとは限りません。
API 仕様書日本語索引
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API 仕様書英語索引
利用可能なすべての API の一覧です。
A
B
- Background Fetch APIExperimental
- バックグラウンド同期 API
- Background Tasks API
- Badging API
- バーコード検出 APIExperimental
- バッテリー状態 API
- Beacon API
- Web Bluetooth APIExperimental
- ブロードキャストチャンネル API
C
- CSS カスタムハイライト API
- CSS フォント読み込み API
- CSS Painting APIExperimental
- CSS プロパティと値 API
- CSS 型付きオブジェクトモデル API
- CSS オブジェクトモデル (CSSOM)
- キャンバス API
- チャンネルメッセージング API
- クリップボード API
- Compression Streams API
- Compute Pressure APIExperimental
- コンソール API
- 連絡先ピッカー APIExperimental
- Content Index APIExperimental
- Cookie Store API
- 資格情報管理 API
D
- ドキュメントオブジェクトモデル (DOM)
- 端末メモリー API
- 端末方向イベント
- Device Posture APIExperimental
- Document Picture-in-Picture APIExperimental
E
F
- Federated Credential Management (FedCM) APIExperimental
- フェンスフレーム APIExperimental
- フェッチ API
- ファイル API
- ファイルシステム API
- ファイルとディレクトリー項目 API
- Force Touch events非標準
- 全画面 API
G
H
I
- Idle Detection APIExperimental
- MediaStream 画像キャプチャ API
- IndexedDB API
- Ink APIExperimental
- 入力機器能力 APIExperimental
- Insertable Streams for MediaStreamTrack APIExperimental
- 交差オブザーバー API
- Invoker Commands API
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- ページ可視性 API
- Payment Handler APIExperimental
- 決済リクエスト API
- パフォーマンス API
- ウェブ定期バックグラウンド同期 APIExperimental
- 権限 API
- ピクチャインピクチャ API
- ポインターイベント
- ポインターロック API
- ポップオーバー API
- プレゼンテーション APIExperimental
- Prioritized Task Scheduling API
- プッシュ API
R
S
- SVG API
- 画面キャプチャ API
- 画面方向 API
- 画面起動ロック API
- Selection API
- センサー API 群
- サーバー送信イベント
- サービスワーカー API
- Shared Storage APIExperimental
- 投機ルール APIExperimental
- Storage API
- Storage Access API
- ストリーム API
- Summarizer APIExperimental
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V
W
- ウェブアニメーション API
- ウェブオーディオ API
- ウェブ認証 API
- ウェブコンポーネント
- Web Crypto API
- Web Locks API
- Web MIDI API
- ウェブ NFC APIExperimental
- 通知 API
- Web Serial APIExperimental
- ウェブ共有 API
- ウェブ音声 API
- ウェブストレージ API
- ウェブワーカー API
- WebCodecs API
- WebGL: ウェブの 2D および 3D グラフィック
- WebGPU API
- WebHID APIExperimental
- WebOTP APIExperimental
- WebRTC API
- WebSocket API (WebSockets)
- WebTransport API
- WebUSB APIExperimental
- WebVR API非標準非推奨;
- WebVTT API
- WebXR 機器 APIExperimental
- Window Controls Overlay APIExperimental
- Window Management APIExperimental
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インターフェイス
利用可能なすべてのインターフェイス (すなわちオブジェクトの型) の一覧です。
A
AbortControllerAbortSignalAbsoluteOrientationSensorAbstractRangeAccelerometerExperimentalAesCbcParamsAesCtrParamsAesGcmParamsAesKeyGenParamsAmbientLightSensorExperimentalAnalyserNodeANGLE_instanced_arraysAnimationAnimationEffectAnimationEventAnimationPlaybackEventAnimationTimelineAttrAudioBufferAudioBufferSourceNodeAudioContextAudioDataAudioDecoderAudioDestinationNodeAudioEncoderAudioListenerAudioNodeAudioParamAudioParamDescriptorAudioParamMapAudioProcessingEvent非推奨;AudioScheduledSourceNodeAudioSinkInfoExperimentalAudioTrackAudioTrackListAudioWorkletAudioWorkletGlobalScopeAudioWorkletNodeAudioWorkletProcessorAuthenticatorAssertionResponseAuthenticatorAttestationResponseAuthenticatorResponse
B
BackgroundFetchEventExperimentalBackgroundFetchManagerExperimentalBackgroundFetchRecordExperimentalBackgroundFetchRegistrationExperimentalBackgroundFetchUpdateUIEventExperimentalBarcodeDetectorExperimentalBarPropBaseAudioContextBatteryManagerBeforeInstallPromptEventExperimental非標準BeforeUnloadEventBiquadFilterNodeBlobBlobEventBluetoothExperimentalBluetoothCharacteristicPropertiesExperimentalBluetoothDeviceExperimentalBluetoothRemoteGATTCharacteristicExperimentalBluetoothRemoteGATTDescriptorExperimentalBluetoothRemoteGATTServerExperimentalBluetoothRemoteGATTServiceExperimentalBluetoothUUIDBroadcastChannelBrowserCaptureMediaStreamTrackExperimentalByteLengthQueuingStrategy
C
CacheCacheStorageCanMakePaymentEventExperimentalCanvasCaptureMediaStreamTrackCanvasGradientCanvasPatternCanvasRenderingContext2DCaptureControllerExperimentalCaretPositionCDATASectionChannelMergerNodeChannelSplitterNodeChapterInformationExperimentalCharacterBoundsUpdateEventExperimentalCharacterDataClientClientsClipboardClipboardEventClipboardItemCloseEventCloseWatcherExperimentalCommandEventCommentCompositionEventCompressionStream
c
C
ConstantSourceNodeContactAddressExperimentalContactsManagerExperimentalContentIndexExperimentalContentIndexEventExperimentalContentVisibilityAutoStateChangeEventConvolverNodeCookieChangeEventCookieStoreCookieStoreManagerCountQueuingStrategyCreateMonitorExperimentalCredentialCredentialsContainerCropTargetExperimentalCryptoCryptoKeyCryptoKeyPairCSPViolationReportBodyCSSCSSAnimationCSSConditionRuleCSSContainerRuleCSSCounterStyleRuleCSSFontFaceRuleCSSFontFeatureValuesRuleCSSFontPaletteValuesRuleCSSGroupingRuleCSSImageValueCSSImportRuleCSSKeyframeRuleCSSKeyframesRuleCSSKeywordValueCSSLayerBlockRuleCSSLayerStatementRuleCSSMathInvertCSSMathMaxCSSMathMinCSSMathNegateCSSMathProductCSSMathSumCSSMathValueCSSMatrixComponentCSSMediaRuleCSSNamespaceRuleCSSNestedDeclarationsCSSNumericArrayCSSNumericValueCSSPageDescriptorsCSSPageRuleCSSPerspectiveCSSPositionTryDescriptorsCSSPositionTryRuleCSSPositionValue非標準非推奨;CSSPrimitiveValue非推奨;CSSPropertyRuleCSSPseudoElementExperimentalCSSRotateCSSRuleCSSRuleListCSSScaleCSSScopeRuleCSSSkewCSSSkewXCSSSkewYCSSStartingStyleRuleCSSStyleDeclarationCSSStyleRuleCSSStyleSheetCSSStyleValueCSSSupportsRuleCSSTransformComponentCSSTransformValueCSSTransitionCSSTranslateCSSUnitValueCSSUnparsedValueCSSValue非推奨;CSSValueList非推奨;CSSVariableReferenceValueCustomElementRegistryCustomEventCustomStateSet
D
DataTransferDataTransferItemDataTransferItemListDecompressionStreamDedicatedWorkerGlobalScopeDeferredRequestInitExperimentalDelayNodeDelegatedInkTrailPresenterExperimentalDeprecationReportBodyExperimentalDeviceMotionEventDeviceMotionEventAccelerationDeviceMotionEventRotationRateDeviceOrientationEventDevicePostureExperimentalDirectoryEntrySync非標準非推奨;DirectoryReaderSync非標準非推奨;DocumentDocumentFragmentDocumentPictureInPictureExperimentalDocumentPictureInPictureEventExperimentalDocumentTimelineDocumentTypeDOMError非推奨;DOMExceptionDOMHighResTimeStampDOMImplementationDOMMatrixDOMMatrixReadOnlyDOMParserDOMPointDOMPointReadOnlyDOMQuadDOMRectDOMRectListDOMRectReadOnlyDOMStringListDOMStringMapDOMTokenListDragEventDynamicsCompressorNode
E
EcdhKeyDeriveParamsEcdsaParamsEcKeyGenParamsEcKeyImportParamsEditContextExperimentalElementElementInternalsEncodedAudioChunkEncodedVideoChunkErrorEventEventEventCountsEventSourceEventTargetExtendableCookieChangeEventExtendableEventExtendableMessageEventEyeDropperExperimental
F
FeaturePolicyExperimentalFederatedCredentialExperimentalFederatedCredentialInitFenceExperimentalFencedFrameConfigExperimentalFetchEventFetchLaterResultExperimentalFileFileEntrySync非標準非推奨;FileListFileReaderFileReaderSyncFileSystemFileSystemChangeRecordFileSystemDirectoryEntryFileSystemDirectoryHandleFileSystemDirectoryReaderFileSystemEntryFileSystemFileEntryFileSystemFileHandleFileSystemHandleFileSystemObserverExperimental非標準FileSystemSync非標準非推奨;FileSystemSyncAccessHandleFileSystemWritableFileStreamFocusEventFontDataExperimentalFontFaceFontFaceSetFontFaceSetLoadEventFormDataFormDataEventFragmentDirective
G
GainNodeGamepadGamepadButtonGamepadEventGamepadHapticActuatorGamepadPoseExperimentalGeolocationGeolocationCoordinatesGeolocationPositionGeolocationPositionErrorGestureEvent非標準GPUGPUAdapterGPUAdapterInfoGPUBindGroupGPUBindGroupLayoutGPUBufferGPUCanvasContextGPUCommandBufferGPUCommandEncoderGPUCompilationInfoGPUCompilationMessageGPUComputePassEncoderGPUComputePipelineGPUDeviceGPUDeviceLostInfoGPUErrorGPUExternalTextureGPUInternalErrorGPUOutOfMemoryErrorGPUPipelineErrorGPUPipelineLayoutGPUQuerySetGPUQueueGPURenderBundleGPURenderBundleEncoderGPURenderPassEncoderGPURenderPipelineGPUSamplerGPUShaderModuleGPUSupportedFeaturesGPUSupportedLimitsGPUTextureGPUTextureViewGPUUncapturedErrorEventGPUValidationErrorGravitySensorGyroscope
H
HashChangeEventHeadersHIDExperimentalHIDConnectionEventExperimentalHIDDeviceExperimentalHIDInputReportEventExperimentalHighlightHighlightRegistryHistoryHkdfParamsHmacImportParamsHmacKeyGenParamsHMDVRDevice非標準非推奨;HTMLAllCollectionHTMLAnchorElementHTMLAreaElementHTMLAudioElementHTMLBaseElementHTMLBodyElementHTMLBRElementHTMLButtonElementHTMLCanvasElementHTMLCollectionHTMLDataElementHTMLDataListElementHTMLDetailsElementHTMLDialogElementHTMLDivElementHTMLDListElementHTMLDocumentHTMLElementHTMLEmbedElementHTMLFencedFrameElementExperimentalHTMLFieldSetElementHTMLFontElement非推奨;HTMLFormControlsCollectionHTMLFormElementHTMLFrameSetElement非推奨;HTMLHeadElementHTMLHeadingElementHTMLHRElementHTMLHtmlElementHTMLIFrameElementHTMLImageElementHTMLInputElementHTMLLabelElementHTMLLegendElementHTMLLIElementHTMLLinkElementHTMLMapElementHTMLMarqueeElement非推奨;HTMLMediaElementHTMLMenuElementHTMLMetaElementHTMLMeterElementHTMLModElementHTMLObjectElementHTMLOListElementHTMLOptGroupElementHTMLOptionElementHTMLOptionsCollectionHTMLOutputElementHTMLParagraphElementHTMLParamElement非推奨;HTMLPictureElementHTMLPreElementHTMLProgressElementHTMLQuoteElementHTMLScriptElementHTMLSelectedContentElementExperimental非標準HTMLSelectElementHTMLSlotElementHTMLSourceElementHTMLSpanElementHTMLStyleElementHTMLTableCaptionElementHTMLTableCellElementHTMLTableColElementHTMLTableElementHTMLTableRowElementHTMLTableSectionElementHTMLTemplateElementHTMLTextAreaElementHTMLTimeElementHTMLTitleElementHTMLTrackElementHTMLUListElementHTMLUnknownElementHTMLVideoElement
I
IDBCursorIDBCursorWithValueIDBDatabaseIDBFactoryIDBIndexIDBKeyRangeIDBObjectStoreIDBOpenDBRequestIDBRequestIDBTransactionIDBVersionChangeEventIdentityCredentialExperimentalIdentityCredentialRequestOptionsExperimentalIdentityProviderExperimentalIdleDeadlineIdleDetectorExperimentalIIRFilterNodeImageBitmapImageBitmapRenderingContextImageCaptureImageDataImageDecoderImageTrackImageTrackListInkExperimentalInputDeviceCapabilitiesExperimentalInputDeviceInfoInputEventInstallEventIntegrityViolationReportBodyIntersectionObserverIntersectionObserverEntryInterventionReportBodyExperimental
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LanguageDetectorExperimentalLargestContentfulPaintLaunchParamsExperimentalLaunchQueueExperimentalLayoutShiftExperimentalLayoutShiftAttributionExperimentalLinearAccelerationSensorLocationLockLockManager
M
MagnetometerExperimentalMathMLElementMediaCapabilitiesMediaDeviceInfoMediaDevicesMediaElementAudioSourceNodeMediaEncryptedEventMediaErrorMediaKeyMessageEventMediaKeysMediaKeySessionMediaKeyStatusMapMediaKeySystemAccessMediaListMediaMetadataMediaQueryListMediaQueryListEventMediaRecorderMediaRecorderErrorEvent非標準非推奨;MediaSessionMediaSourceMediaSourceHandleMediaStreamMediaStreamAudioDestinationNodeMediaStreamAudioSourceNodeMediaStreamEvent非標準非推奨;MediaStreamTrackMediaStreamTrackAudioSourceNodeMediaStreamTrackEventMediaStreamTrackGeneratorExperimental非標準MediaStreamTrackProcessorMediaTrackConstraintsMediaTrackSettingsMediaTrackSupportedConstraintsMerchantValidationEvent非推奨;MessageChannelMessageEventMessagePortMetadataExperimental非標準MIDIAccessMIDIConnectionEventMIDIInputMIDIInputMapMIDIMessageEventMIDIOutputMIDIOutputMapMIDIPortMimeType非推奨;MimeTypeArray非推奨;MouseEventMouseScrollEvent非標準非推奨;MutationEvent非標準非推奨;MutationObserverMutationRecord
N
NamedNodeMapNavigateEventExperimentalNavigationExperimentalNavigationActivationExperimentalNavigationCurrentEntryChangeEventExperimentalNavigationDestinationExperimentalNavigationHistoryEntryExperimentalNavigationPreloadManagerNavigationTransitionExperimentalNavigatorNavigatorLoginNavigatorUADataExperimentalNDEFMessageExperimentalNDEFReaderExperimentalNDEFReadingEventExperimentalNDEFRecordExperimentalNetworkInformationNodeNodeIteratorNodeListNotificationNotificationEventNotRestoredReasonDetailsExperimentalNotRestoredReasonsExperimental
O
OES_draw_buffers_indexedOfflineAudioCompletionEventOfflineAudioContextOffscreenCanvasOffscreenCanvasRenderingContext2DOrientationSensorOscillatorNodeOTPCredentialExperimentalOverconstrainedError
P
PageRevealEventPageSwapEventPageTransitionEventPaintRenderingContext2DPaintSizePaintWorkletGlobalScopeExperimentalPannerNodePasswordCredentialExperimentalPasswordCredentialInitPath2DPaymentAddress非標準非推奨;PaymentManagerExperimentalPaymentMethodChangeEventPaymentRequestPaymentRequestEventExperimentalPaymentRequestUpdateEventPaymentResponsePbkdf2ParamsPerformancePerformanceElementTimingExperimentalPerformanceEntryPerformanceEventTimingPerformanceLongAnimationFrameTimingExperimentalPerformanceLongTaskTimingExperimentalPerformanceMarkPerformanceMeasurePerformanceNavigation非推奨;PerformanceNavigationTimingPerformanceObserverPerformanceObserverEntryListPerformancePaintTimingPerformanceResourceTimingPerformanceScriptTimingExperimentalPerformanceServerTimingPerformanceTiming非推奨;PeriodicSyncEventExperimentalPeriodicSyncManagerExperimentalPeriodicWavePermissionsPermissionStatusPictureInPictureEventPictureInPictureWindowPlugin非推奨;PluginArray非推奨;Point非標準非推奨;PointerEventPopStateEventPositionSensorVRDevice非標準非推奨;PresentationExperimentalPresentationAvailabilityExperimentalPresentationConnectionExperimentalPresentationConnectionAvailableEventExperimentalPresentationConnectionCloseEventExperimentalPresentationConnectionListExperimentalPresentationReceiverExperimentalPresentationRequestExperimentalPressureObserverExperimentalPressureRecordExperimentalProcessingInstructionProfilerExperimentalProgressEventPromiseRejectionEventPublicKeyCredentialPublicKeyCredentialCreationOptionsPublicKeyCredentialRequestOptionsPushEventPushManagerPushMessageDataPushSubscriptionPushSubscriptionOptions
R
RadioNodeListRangeReadableByteStreamControllerReadableStreamReadableStreamBYOBReaderReadableStreamBYOBRequestReadableStreamDefaultControllerReadableStreamDefaultReaderRelativeOrientationSensorRemotePlaybackReportReportBodyReportingObserverRequestRequestInitResizeObserverResizeObserverEntryResizeObserverSizeResponseRestrictionTargetExperimentalRsaHashedImportParamsRsaHashedKeyGenParamsRsaOaepParamsRsaPssParamsRTCAudioSourceStatsRTCCertificateRTCCertificateStatsRTCCodecStatsRTCDataChannelRTCDataChannelEventRTCDataChannelStatsRTCDtlsTransportRTCDTMFSenderRTCDTMFToneChangeEventRTCEncodedAudioFrameRTCEncodedVideoFrameRTCErrorRTCErrorEventRTCIceCandidateRTCIceCandidatePairRTCIceCandidatePairStatsRTCIceCandidateStatsRTCIceParametersRTCIceTransportRTCIdentityAssertionExperimentalRTCInboundRtpStreamStatsRTCOutboundRtpStreamStatsRTCPeerConnectionRTCPeerConnectionIceErrorEventRTCPeerConnectionIceEventRTCPeerConnectionStatsRTCRemoteInboundRtpStreamStatsRTCRemoteOutboundRtpStreamStatsRTCRtpReceiverRTCRtpScriptTransformRTCRtpScriptTransformerRTCRtpSenderRTCRtpTransceiverRTCSctpTransportRTCSessionDescriptionRTCStatsReportRTCTrackEventRTCTransformEventRTCTransportStatsRTCVideoSourceStats
S
SanitizerExperimentalSanitizerConfigExperimentalSchedulerSchedulingExperimentalScreenScreenDetailedExperimentalScreenDetailsExperimentalScreenOrientationScriptProcessorNode非推奨;ScrollTimelineSecurePaymentConfirmationRequestSecurityPolicyViolationEventSelectionSensorSensorErrorEventSerialExperimentalSerialPortExperimentalServiceWorkerServiceWorkerContainerServiceWorkerGlobalScopeServiceWorkerRegistrationShadowRootSharedStorageExperimentalSharedStorageOperationExperimentalSharedStorageRunOperationExperimentalSharedStorageSelectURLOperationExperimentalSharedStorageWorkletExperimentalSharedStorageWorkletGlobalScopeExperimentalSharedWorkerSharedWorkerGlobalScopeSnapEventExperimentalSourceBufferSourceBufferListSpeechGrammar非標準非推奨;SpeechGrammarListExperimentalSpeechRecognitionSpeechRecognitionAlternativeSpeechRecognitionErrorEventSpeechRecognitionEventSpeechRecognitionResultSpeechRecognitionResultListSpeechSynthesisSpeechSynthesisErrorEventSpeechSynthesisEventSpeechSynthesisUtteranceSpeechSynthesisVoiceStaticRangeStereoPannerNodeStorageStorageAccessHandleStorageEventStorageManagerStylePropertyMapStylePropertyMapReadOnlyStyleSheetStyleSheetListSubmitEventSubtleCryptoSummarizerExperimentalSVGAElementSVGAngleSVGAnimateColorElement非推奨;SVGAnimatedAngleSVGAnimatedBooleanSVGAnimatedEnumerationSVGAnimatedIntegerSVGAnimatedLengthSVGAnimatedLengthListSVGAnimatedNumberSVGAnimatedNumberListSVGAnimatedPreserveAspectRatioSVGAnimatedRectSVGAnimatedStringSVGAnimatedTransformListSVGAnimateElementSVGAnimateMotionElementSVGAnimateTransformElementSVGAnimationElementSVGCircleElementSVGClipPathElementSVGComponentTransferFunctionElementSVGDefsElementSVGDescElementSVGDiscardElement非推奨;SVGElementSVGEllipseElementSVGFEBlendElementSVGFEColorMatrixElementSVGFEComponentTransferElementSVGFECompositeElementSVGFEConvolveMatrixElementSVGFEDiffuseLightingElementSVGFEDisplacementMapElementSVGFEDistantLightElementSVGFEDropShadowElementSVGFEFloodElementSVGFEFuncAElementSVGFEFuncBElementSVGFEFuncGElementSVGFEFuncRElementSVGFEGaussianBlurElementSVGFEImageElementSVGFEMergeElementSVGFEMergeNodeElementSVGFEMorphologyElementSVGFEOffsetElementSVGFEPointLightElementSVGFESpecularLightingElementSVGFESpotLightElementSVGFETileElementSVGFETurbulenceElementSVGFilterElementSVGForeignObjectElementSVGGElementSVGGeometryElementSVGGradientElementSVGGraphicsElementSVGImageElementSVGLengthSVGLengthListSVGLinearGradientElementSVGLineElementSVGMarkerElementSVGMaskElementSVGMetadataElementSVGMPathElementSVGNumberSVGNumberListSVGPathElementSVGPatternElementSVGPoint非推奨;SVGPointListSVGPolygonElementSVGPolylineElementSVGPreserveAspectRatioSVGRadialGradientElementSVGRectSVGRectElementSVGRenderingIntent非推奨;SVGScriptElementSVGSetElementSVGStopElementSVGStringListSVGStyleElementSVGSVGElementSVGSwitchElementSVGSymbolElementSVGTextContentElementSVGTextElementSVGTextPathElementSVGTextPositioningElementSVGTitleElementSVGTransformSVGTransformListSVGTSpanElementSVGUnitTypesSVGUseElementSVGViewElementSyncEventSyncManager
T
TaskAttributionTimingExperimentalTaskControllerTaskPriorityChangeEventTaskSignalTextTextDecoderTextDecoderStreamTextEncoderTextEncoderStreamTextEvent非推奨;TextFormatExperimentalTextFormatUpdateEventExperimentalTextMetricsTextTrackTextTrackCueTextTrackCueListTextTrackListTextUpdateEventExperimentalTimeEventTimeRangesToggleEventTouchTouchEventTouchListTrackEventTransformStreamTransformStreamDefaultControllerTransitionEventTranslatorExperimentalTreeWalkerTrustedHTMLTrustedScriptTrustedScriptURLTrustedTypePolicyTrustedTypePolicyFactory
U
UIEventURLURLPatternURLSearchParamsUSBExperimentalUSBAlternateInterfaceExperimentalUSBConfigurationExperimentalUSBConnectionEventExperimentalUSBDeviceExperimentalUSBEndpointExperimentalUSBInterfaceExperimentalUSBInTransferResultExperimentalUSBIsochronousInTransferPacketExperimentalUSBIsochronousInTransferResultExperimentalUSBIsochronousOutTransferPacketExperimentalUSBIsochronousOutTransferResultExperimentalUSBOutTransferResultExperimentalUserActivation
V
ValidityStateVideoColorSpaceVideoDecoderVideoEncoderVideoFrameVideoPlaybackQualityVideoTrackVideoTrackGeneratorExperimentalVideoTrackListViewTimelineViewTransitionVirtualKeyboardExperimentalVisibilityStateEntryExperimentalVisualViewportVRDisplay非標準非推奨;VRDisplayCapabilities非標準非推奨;VRDisplayEvent非標準非推奨;VREyeParameters非標準非推奨;VRFieldOfView非標準非推奨;VRFrameData非標準非推奨;VRLayerInit非標準非推奨;VRPose非標準非推奨;VRStageParameters非標準非推奨;VTTCueVTTRegion
W
WakeLockWakeLockSentinelWaveShaperNodeWebGL2RenderingContextWebGLActiveInfoWebGLBufferWebGLContextEventWebGLFramebufferWebGLObjectExperimentalWebGLProgramWebGLQueryWebGLRenderbufferWebGLRenderingContextWebGLSamplerWebGLShaderWebGLShaderPrecisionFormatWebGLSyncWebGLTextureWebGLTransformFeedbackWebGLUniformLocationWebGLVertexArrayObjectWebSocketWebSocketStreamExperimentalWebTransportWebTransportBidirectionalStreamWebTransportDatagramDuplexStreamWebTransportErrorWebTransportReceiveStreamExperimentalWebTransportSendStreamExperimentalWGSLLanguageFeaturesWheelEventWindowWindowClientWindowControlsOverlayExperimentalWindowControlsOverlayGeometryChangeEventExperimentalWindowSharedStorageExperimentalWorkerWorkerGlobalScopeWorkerLocationWorkerNavigatorWorkletWorkletGlobalScopeWorkletSharedStorageExperimentalWritableStreamWritableStreamDefaultControllerWritableStreamDefaultWriter
X
XMLDocumentXMLHttpRequestXMLHttpRequestEventTargetXMLHttpRequestUploadXMLSerializerXPathEvaluatorXPathExpressionXPathResultXRAnchorExperimentalXRAnchorSetExperimentalXRBoundedReferenceSpaceExperimentalXRCompositionLayerExperimentalXRCPUDepthInformationExperimentalXRCubeLayerExperimentalXRCylinderLayerExperimentalXRDepthInformationExperimentalXREquirectLayerExperimentalXRFrameExperimentalXRHandXRHitTestResultExperimentalXRHitTestSourceExperimentalXRInputSourceXRInputSourceArrayExperimentalXRInputSourceEventXRInputSourcesChangeEventXRJointPoseXRJointSpaceXRLayerExperimentalXRLayerEventExperimentalXRLightEstimateExperimentalXRLightProbeExperimentalXRMediaBindingExperimentalXRPoseXRProjectionLayerExperimentalXRQuadLayerExperimentalXRRayExperimentalXRReferenceSpaceXRReferenceSpaceEventXRRenderStateExperimentalXRRigidTransformXRSessionExperimentalXRSessionEventXRSpaceXRSubImageExperimentalXRSystemExperimentalXRTransientInputHitTestResultExperimentalXRTransientInputHitTestSourceExperimentalXRViewExperimentalXRViewerPoseXRViewportXRWebGLBindingExperimentalXRWebGLDepthInformationExperimentalXRWebGLLayerExperimentalXRWebGLSubImageExperimentalXSLTProcessor