Test whether a JS ID is JSID_EMPTY.
Syntax
bool JSID_IS_EMPTY(jsid id);
| Name | Type | Description |
|---|---|---|
id |
jsid |
The property identifier to test. |
Description
JSID_IS_EMPTY tests whether a specified JS ID, id, is JSID_EMPTY.
JSID_IS_EMPTY
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JSAPI reference
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BOOLEAN_TO_JSVAL -
DOUBLE_TO_JSVAL -
INT_FITS_IN_JSVAL -
INT_TO_JSVAL -
JS::Add*Root JS::AutoIdArrayJS::AutoSaveExceptionStateJS::AutoValueArrayJS::AutoVectorRooterJS::BooleanValueJS::CallJS::CallArgsJS::CloneFunctionObjectJS::CompileJS::CompileFunctionJS::CompileOffThreadJS::CompileOptionsJS::ConstructJS::CreateErrorJS::CurrentGlobalOrNullJS::DeflateStringToUTF8BufferJS::DoubleNaNValueJS::DoubleValueJS::EvaluateJS::FalseValueJS::Float32ValueJS::GetDeflatedUTF8StringLengthJS::GetFirstArgumentAsTypeHintJS::GetSelfHostedFunctionJS::HandleJS::HandleValueArrayJS::IdentifyStandardInstanceJS::Int32ValueJS::IsCallableJS::MutableHandleJS::NewFunctionFromSpecJS::NullHandleValueJS::NullValueJS::NumberValueJS::ObjectOrNullValueJS::ObjectValueJS::OrdinaryToPrimitiveJS::PersistentRootedJS::PropertySpecNameEqualsIdJS::PropertySpecNameIsSymbolJS::PropertySpecNameToPermanentIdJS::ProtoKeyToId-
JS::Remove*Root JS::RootedJS::SetLargeAllocationFailureCallbackJS::SetOutOfMemoryCallbackJS::SourceBufferHolderJS::StringValueJS::SymbolValueJS::ToBooleanJS::ToInt32JS::ToInt64JS::ToNumberJS::ToPrimitiveJS::ToStringJS::ToUint16JS::ToUint32JS::ToUint64JS::TrueHandleValueJS::TrueValueJS::UndefinedHandleValueJS::UndefinedValueJS::ValueJSAutoByteStringJSAutoCompartment-
JSBool -
JSCheckAccessOp JSClassJSClass.callJSClass.flagsJSConstDoubleSpecJSConvertOpJSDeletePropertyOpJSEnumerateOpJSErrorFormatStringJSErrorReportJSExceptionStateJSExnType-
JSExtendedClass -
JSExtendedClass.outerObject -
JSExtendedClass.wrappedObject -
JSFUN_BOUND_METHOD -
JSFUN_GLOBAL_PARENT -
JSFastNative JSFinalizeOpJSFreeOpJSFunctionJSFunctionSpec-
JSGetObjectOps JSHasInstanceOpJSID_EMPTYJSID_IS_EMPTYJSID_IS_GCTHINGJSID_IS_INTJSID_IS_STRINGJSID_IS_SYMBOLJSID_IS_VOIDJSID_IS_ZEROJSID_VOIDJSIdArray-
JSIteratorOp -
JSMarkOp JSNativeJSNewEnumerateOp-
JSNewResolveOp JSObject-
JSObjectOp -
JSObjectOps.defaultValue -
JSObjectOps.defineProperty -
JSObjectOps.destroyObjectMap -
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JSObjectOps.enumerate -
JSObjectOps.getAttributes -
JSObjectOps.getProperty -
JSObjectOps.getRequiredSlot -
JSObjectOps.lookupProperty -
JSObjectOps.newObjectMap -
JSObjectOps.setProto -
JSObjectPrincipalsFinder -
JSPRINCIPALS_HOLD JSPrincipalsJSPrincipalsTranscoder-
JSProperty JSPropertyDescriptorJSPropertyOpJSPropertySpecJSProtoKey-
JSReserveSlotsOp JSResolveOpJSRuntimeJSSecurityCallbacks.contentSecurityPolicyAllowsJSStringJSStringFinalizerJSTraceOpJSType-
JSVAL_IS_BOOLEAN -
JSVAL_IS_DOUBLE -
JSVAL_IS_GCTHING -
JSVAL_IS_INT -
JSVAL_IS_NULL -
JSVAL_IS_NUMBER -
JSVAL_IS_OBJECT -
JSVAL_IS_PRIMITIVE -
JSVAL_IS_STRING -
JSVAL_IS_VOID -
JSVAL_LOCK -
JSVAL_NULL -
JSVAL_ONE -
JSVAL_TO_BOOLEAN -
JSVAL_TO_DOUBLE -
JSVAL_TO_GCTHING -
JSVAL_TO_INT -
JSVAL_TO_OBJECT -
JSVAL_TO_STRING -
JSVAL_TRUE -
JSVAL_UNLOCK -
JSVAL_VOID -
JSVAL_ZERO JSVersion-
JSXDRObjectOp JS_ASSERT_STRING_IS_FLAT-
JS_Add*Root -
JS_AddArgumentFormatter -
JS_AddExternalStringFinalizer JS_AddFinalizeCallback-
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JS_ClearNonGlobalObject JS_ClearPendingExceptionJS_ClearRegExpStatics-
JS_ClearScope JS_CloneFunctionObjectJS_CompareStrings-
JS_CompileFileHandleForPrincipals -
JS_CompileFileHandleForPrincipalsVersion JS_CompileFunction-
JS_CompileFunctionForPrincipals JS_CompileScript-
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JS_CompileUTF8File -
JS_CompileUTF8FileHandle JS_ConcatStrings-
JS_ConstructObject JS_ContextIterator-
JS_ConvertArguments -
JS_ConvertArgumentsVA -
JS_ConvertValue JS_DecompileFunctionJS_DecompileFunctionBodyJS_DecompileScriptJS_DecompileScriptObjectJS_DeepFreezeObjectJS_DefaultValueJS_DefineConstDoublesJS_DefineElementJS_DefineFunctionJS_DefineFunctionsJS_DefineObject-
JS_DefineOwnProperty JS_DefinePropertiesJS_DefineProperty-
JS_DefinePropertyWithTinyId JS_DeleteElement-
JS_DeleteElement2 JS_DeleteProperty-
JS_DeleteProperty2 JS_DestroyContextJS_DestroyIdArrayJS_DestroyRuntime-
JS_DestroyScript JS_DoubleIsInt32-
JS_DoubleToInt32 JS_DropExceptionState-
JS_DumpHeap -
JS_DumpNamedRoots -
JS_EncodeCharacters JS_EncodeStringJS_EncodeStringToBufferJS_EnterCompartment-
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JS_EnterLocalRootScope JS_EnumerateJS_EnumerateDiagnosticMemoryRegions-
JS_EnumerateResolvedStandardClasses JS_EnumerateStandardClassesJS_ErrorFromException-
JS_EvaluateScript -
JS_EvaluateScriptForPrincipals JS_ExecuteRegExpJS_ExecuteScript-
JS_ExecuteScriptPart -
JS_ExecuteScriptVersion JS_FORGET_STRING_FLATNESSJS_FSJS_FileEscapedString-
JS_Finish JS_FlattenStringJS_FlushCaches-
JS_ForgetLocalRoot JS_ForwardGetPropertyToJS_FreezeObjectJS_GC-
JS_GET_CLASS JS_GetArrayLengthJS_GetArrayPrototypeJS_GetClassJS_GetClassObjectJS_GetClassPrototypeJS_GetCompartmentPrivateJS_GetConstructorJS_GetContextPrivateJS_GetContextThreadJS_GetDefaultFreeOpJS_GetElementJS_GetEmptyStringJS_GetEmptyStringValueJS_GetErrorPrototype-
JS_GetExternalStringClosure JS_GetExternalStringFinalizer-
JS_GetFlatStringChars JS_GetFunctionArity-
JS_GetFunctionCallback -
JS_GetFunctionFlags JS_GetFunctionId-
JS_GetFunctionName JS_GetFunctionObjectJS_GetFunctionPrototypeJS_GetFunctionScriptJS_GetGCParameterJS_GetGlobalForCompartmentOrNullJS_GetGlobalForObjectJS_GetGlobalForObject3-
JS_GetGlobalForScopeChain -
JS_GetGlobalObject JS_GetImplementationVersionJS_GetInstancePrivate-
JS_GetInternedStringChars JS_GetLatin1FlatStringCharsJS_GetLatin1InternedStringCharsJS_GetLatin1StringCharsAndLengthJS_GetLocaleCallbacksJS_GetNaNValueJS_GetObjectPrototypeJS_GetObjectRuntime-
JS_GetOptions JS_GetOwnPropertyDescriptor-
JS_GetParent JS_GetParentRuntimeJS_GetPendingExceptionJS_GetPositiveInfinityValueJS_GetPrivateJS_GetProperty-
JS_GetPropertyAttributes -
JS_GetPropertyAttrsGetterAndSetter -
JS_GetPropertyDefault JS_GetPropertyDescriptorJS_GetPrototypeJS_GetRegExpFlagsJS_GetRegExpSourceJS_GetReservedSlotJS_GetRuntimeJS_GetRuntimePrivate-
JS_GetScopeChain JS_GetSecurityCallbacks-
JS_GetStringBytes JS_GetStringCharAt-
JS_GetStringChars -
JS_GetStringCharsAndLength JS_GetStringEncodingLengthJS_GetStringLengthJS_GetTwoByteExternalStringChars-
JS_GetTypeName JS_GetVersion-
JS_HasArrayLength JS_HasElementJS_HasInstanceJS_HasOwnPropertyJS_HasPropertyJS_IdArrayGetJS_IdArrayLengthJS_IdToProtoKeyJS_IdToValueJS_InitJS_InitCTypesClassJS_InitClassJS_InitStandardClassesJS_InstanceOfJS_InternJSStringJS_InternStringJS_IsArrayObject-
JS_IsAssigning JS_IsBuiltinEvalFunctionJS_IsBuiltinFunctionConstructor-
JS_IsConstructing -
JS_IsConstructing_PossiblyWithGivenThisObject JS_IsConstructorJS_IsExceptionPendingJS_IsExtensibleJS_IsExternalStringJS_IsGlobalObjectJS_IsIdentifierJS_IsNativeJS_IsNativeFunctionJS_IsRunningJS_IsStopIterationJS_IterateCompartmentsJS_LeaveCompartment-
JS_LeaveCrossCompartmentCall -
JS_LeaveLocalRootScope -
JS_LeaveLocalRootScopeWithResult JS_LinkConstructorAndPrototypeJS_Lock-
JS_LockGCThing -
JS_LookupElement -
JS_LookupProperty JS_LooselyEqual-
JS_MakeStringImmutable -
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JS_NewPropertyIterator JS_NewRegExpObjectJS_NewRuntime-
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JS_RemoveExternalStringFinalizer -
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JS_SetCallReturnValue2 JS_SetCheckObjectAccessCallbackJS_SetCompartmentNameCallbackJS_SetContextCallbackJS_SetDefaultLocaleJS_SetDestroyCompartmentCallbackJS_SetElementJS_SetErrorReporterJS_SetExtraGCRoots-
JS_SetFunctionCallback JS_SetGCCallbackJS_SetGCParametersBasedOnAvailableMemoryJS_SetGCZeal-
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JS_SetParent JS_SetPendingExceptionJS_SetPrincipalsTranscoderJS_SetPrivateJS_SetProperty-
JS_SetPropertyAttributes JS_SetPrototypeJS_SetRegExpInput-
JS_SetScriptStackQuota -
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JS_SetVersion JS_SetVersionForCompartmentJS_ShutDownJS_StrictlyEqualJS_StringEqualsAsciiJS_StringHasBeenInternedJS_StringHasLatin1CharsJS_StringIsFlatJS_StringToVersionJS_SuspendRequestJS_THREADSAFEJS_ThrowStopIteration-
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JS_ValueToInt32 -
JS_ValueToNumber JS_ValueToObjectJS_ValueToSource-
JS_ValueToString JS_VersionToStringJS_YieldRequestJS_freeopJS_mallocJS_updateMallocCounter-
OBJECT_TO_JSVAL -
PRIVATE_TO_JSVAL Property attributes-
STRING_TO_JSVAL Stored value-
jschar -
jsdouble jsid-
jsint
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