• instance {WebAssembly.Instance}

    Attempt to initialize instance as a WASI reactor by invoking its _initialize() export, if it is present. If instance contains a _start() export, then an exception is thrown.

    initialize() requires that instance exports a [WebAssembly.Memory][] named memory. If instance does not have a memory export an exception is thrown.

    If initialize() is called more than once, an exception is thrown.