Possibly the most common use case in all of JavaScript for async and await is using the browser’s built-in fetch API. Listing 1 declares an async function and uses await within it.

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.

Callbacks work fine for handling asynchronous code in JavaScript, but promises and the async and await keywords are cleaner and more flexible.

Blazor 0.4.0 provides simpler pattern with the new Blazor.invokeDotNetMethod and Blazor.invokeDotNetMethodAsync functions." Speaking of the latter, it says: "With Blazor 0.4.0 you can now call and ...