Obsolete since JSAPI 25
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
BOOLEAN_TO_JSVALDOUBLE_TO_JSVALINT_FITS_IN_JSVALINT_TO_JSVALJS::Add*RootJS::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::ProtoKeyToIdJS::Remove*RootJS::RootedJS::SetLargeAllocationFailureCallbackJS::SetOutOfMemoryCallbackJS::SourceBufferHolderJS::StringValueJS::SymbolValueJS::ToBooleanJS::ToInt32JS::ToInt64JS::ToNumberJS::ToPrimitiveJS::ToStringJS::ToUint16JS::ToUint32JS::ToUint64JS::TrueHandleValueJS::TrueValueJS::UndefinedHandleValueJS::UndefinedValueJS::ValueJSAutoByteStringJSAutoCompartmentJSBoolJSCheckAccessOpJSClassJSClass.callJSClass.flagsJSConstDoubleSpecJSConvertOpJSDeletePropertyOpJSEnumerateOpJSErrorFormatStringJSErrorReportJSExceptionStateJSExnTypeJSExtendedClassJSExtendedClass.outerObjectJSExtendedClass.wrappedObjectJSFUN_BOUND_METHODJSFUN_GLOBAL_PARENTJSFastNativeJSFinalizeOpJSFreeOpJSFunctionJSFunctionSpecJSGetObjectOpsJSHasInstanceOpJSID_EMPTYJSID_IS_EMPTYJSID_IS_GCTHINGJSID_IS_INTJSID_IS_STRINGJSID_IS_SYMBOLJSID_IS_VOIDJSID_IS_ZEROJSID_VOIDJSIdArrayJSIteratorOpJSMarkOpJSNativeJSNewEnumerateOpJSNewResolveOpJSObjectJSObjectOpJSObjectOps.defaultValueJSObjectOps.definePropertyJSObjectOps.destroyObjectMapJSObjectOps.dropPropertyJSObjectOps.enumerateJSObjectOps.getAttributesJSObjectOps.getPropertyJSObjectOps.getRequiredSlotJSObjectOps.lookupPropertyJSObjectOps.newObjectMapJSObjectOps.setProtoJSObjectPrincipalsFinderJSPRINCIPALS_HOLDJSPrincipalsJSPrincipalsTranscoderJSPropertyJSPropertyDescriptorJSPropertyOpJSPropertySpecJSProtoKeyJSReserveSlotsOpJSResolveOpJSRuntimeJSSecurityCallbacks.contentSecurityPolicyAllowsJSStringJSStringFinalizerJSTraceOpJSTypeJSVAL_IS_BOOLEANJSVAL_IS_DOUBLEJSVAL_IS_GCTHINGJSVAL_IS_INTJSVAL_IS_NULLJSVAL_IS_NUMBERJSVAL_IS_OBJECTJSVAL_IS_PRIMITIVEJSVAL_IS_STRINGJSVAL_IS_VOIDJSVAL_LOCKJSVAL_NULLJSVAL_ONEJSVAL_TO_BOOLEANJSVAL_TO_DOUBLEJSVAL_TO_GCTHINGJSVAL_TO_INTJSVAL_TO_OBJECTJSVAL_TO_STRINGJSVAL_TRUEJSVAL_UNLOCKJSVAL_VOIDJSVAL_ZEROJSVersionJSXDRObjectOpJS_ASSERT_STRING_IS_FLATJS_Add*RootJS_AddArgumentFormatterJS_AddExternalStringFinalizerJS_AddFinalizeCallbackJS_AliasElementJS_AliasPropertyJS_AlreadyHasOwnPropertyJS_BeginRequestJS_BindCallableJS_BufferIsCompilableUnitJS_CStringsAreUTF8JS_CallFunctionJS_CheckAccessJS_CheckForInterruptJS_ClearContextThreadJS_ClearDateCachesJS_ClearNewbornRootsJS_ClearNonGlobalObjectJS_ClearPendingExceptionJS_ClearRegExpStaticsJS_ClearScopeJS_CloneFunctionObjectJS_CompareStringsJS_CompileFileHandleForPrincipalsJS_CompileFileHandleForPrincipalsVersionJS_CompileFunctionJS_CompileFunctionForPrincipalsJS_CompileScriptJS_CompileScriptForPrincipalsJS_CompileUCFunctionForPrincipalsVersionJS_CompileUTF8FileJS_CompileUTF8FileHandleJS_ConcatStringsJS_ConstructObjectJS_ContextIteratorJS_ConvertArgumentsJS_ConvertArgumentsVAJS_ConvertValueJS_DecompileFunctionJS_DecompileFunctionBodyJS_DecompileScriptJS_DecompileScriptObjectJS_DeepFreezeObjectJS_DefaultValueJS_DefineConstDoublesJS_DefineElementJS_DefineFunctionJS_DefineFunctionsJS_DefineObjectJS_DefineOwnPropertyJS_DefinePropertiesJS_DefinePropertyJS_DefinePropertyWithTinyIdJS_DeleteElementJS_DeleteElement2JS_DeletePropertyJS_DeleteProperty2JS_DestroyContextJS_DestroyIdArrayJS_DestroyRuntimeJS_DestroyScriptJS_DoubleIsInt32JS_DoubleToInt32JS_DropExceptionStateJS_DumpHeapJS_DumpNamedRootsJS_EncodeCharactersJS_EncodeStringJS_EncodeStringToBufferJS_EnterCompartmentJS_EnterCrossCompartmentCallJS_EnterLocalRootScopeJS_EnumerateJS_EnumerateDiagnosticMemoryRegionsJS_EnumerateResolvedStandardClassesJS_EnumerateStandardClassesJS_ErrorFromExceptionJS_EvaluateScriptJS_EvaluateScriptForPrincipalsJS_ExecuteRegExpJS_ExecuteScriptJS_ExecuteScriptPartJS_ExecuteScriptVersionJS_FORGET_STRING_FLATNESSJS_FSJS_FileEscapedStringJS_FinishJS_FlattenStringJS_FlushCachesJS_ForgetLocalRootJS_ForwardGetPropertyToJS_FreezeObjectJS_GCJS_GET_CLASSJS_GetArrayLengthJS_GetArrayPrototypeJS_GetClassJS_GetClassObjectJS_GetClassPrototypeJS_GetCompartmentPrivateJS_GetConstructorJS_GetContextPrivateJS_GetContextThreadJS_GetDefaultFreeOpJS_GetElementJS_GetEmptyStringJS_GetEmptyStringValueJS_GetErrorPrototypeJS_GetExternalStringClosureJS_GetExternalStringFinalizerJS_GetFlatStringCharsJS_GetFunctionArityJS_GetFunctionCallbackJS_GetFunctionFlagsJS_GetFunctionIdJS_GetFunctionNameJS_GetFunctionObjectJS_GetFunctionPrototypeJS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attributesSTRING_TO_JSVALStored valuejscharjsdoublejsidjsintConfigure a JSContext to use a specific version of the JavaScript language.
JSVersion JS_SetVersion(JSContext *cx, JSVersion version);
| Name | Type | Description |
|---|---|---|
cx |
JSContext * |
Pointer to a JS context from which to derive runtime information. |
version |
JSVersion |
Version of JavaScript to set context to. |
JS_SetVersion attempts to set the version of JavaScript to version for a specified executable script context, cx. The version comes from the JSVersion enumerated type.
JS_SetVersion returns the JS version in effect for the context before you changed it.