如何从 Blazor 调用 JavaScript 类构造函数

Question

If I have JavaScript classes defined in a library like three.js, how can I call the constructor from Blazor WebAssembly and instantiate objects?

I have tried

    var threeJs = await Js.InvokeAsync<IJSInProcessObjectReference>("import", "https://threejsfundamentals.org/threejs/resources/threejs/r125/build/three.module.js");
    var scn = threeJs.Invoke<IJSInProcessObjectReference>("new THREE.Scene");

but this results in an error saying " Microsoft.JSInterop.JSException: Could not find 'new THREE.Scene' ('new THREE' was undefined). "

Is it possible to instantiate JavaScript classes without making a JavaScript wrapper function which instantiates the object?

Answer 1

You can't call new THREE.Scene by itself. You can do something like const scene = new THREE.Scene . But, I don't know what good instantiating a variable in JSInterop would do.