Async/Await Async/await is a syntactic feature in modern programming languages that simplifies writing asynchronous code, making it almost as straightforward as writing synchronous code.

Synchronous vs. asynchronous file handling Once you have the fs object in hand, there are two ways to interact with the filesystem: synchronously or asynchronously.

Speaking of the former, the post says: "Blazor 0.4.0 makes it easy to call sync and async .NET methods from JavaScript. For example, you might call back into .NET when a JavaScript callback is ...