[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [EmscriptenWrapperOptions](./rc-js-util.emscriptenwrapperoptions.md) > [(constructor)](./rc-js-util.emscriptenwrapperoptions._constructor_.md) ## EmscriptenWrapperOptions.(constructor) Constructs a new instance of the `EmscriptenWrapperOptions` class **Signature:** ```typescript constructor(initializeCallbacks: readonly ((wrapper: IEmscriptenWrapper) => void)[]); ``` ## Parameters

Parameter	Type	Description
initializeCallbacks	readonly ((wrapper: [IEmscriptenWrapper](./rc-js-util.iemscriptenwrapper.md)<TModule, [ILifecycleStrategy](./rc-js-util.ilifecyclestrategy.md)>) => void)\[\]