Does an AsyncMethod().Result equivalent exist in typescript?

When working in C#, you have the ability to call the result of an asynchronous method synchronously by accessing the Result property.

For example:

var returnVal = AsyncMethod().Result;

What is a similar approach in typescript?

Answer №1

While there is async/await in JavaScript, it doesn't function exactly like the Result property in the Task<T> class in C#. In TypeScript, the equivalent of Promise<T> describes promise objects.

JavaScript is inherently asynchronous due to its single-threaded nature. Blocking the thread until a result arrives, as done with Result, would halt all other code execution and potentially prevent the result from ever coming through.

Using Result can be risky in C#, often leading to deadlocks. It's generally advised to use async throughout instead. Similarly, in JavaScript, it's best practice to consistently embrace asynchronicity by using async/await.

For example, instead of:

function f() {

    const x = downloadSomething(); // x is a promise, I want the result
}

You should write:

async function f() {

    const x = await downloadSomething();
}

By making this change, f() now returns a promise, allowing for proper handling of asynchronicity. This aligns with best practices in both C# and JavaScript development.

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