Asynchronous programming in JavaScript leverages features like callbacks, promises and async/await to sidestep this issue by allowing other code to run in the meantime.

The WebAssembly JavaScript Promise Integration API suspends a Wasm application when it issues a synchronous API call and resumes it when the asynchronous I/O operation is completed. The developers ...

Speaking of the latter, it says: "With Blazor 0.4.0 you can now call and await registered JavaScript async functions like you would an async .NET method using the new RegisteredFunction.InvokeAsync ...