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Mastering TypeScript

Callbacks vs. Promises vs. Async

Explore the differences between callbacks promises and async await in TypeScript asynchronous programming. Learn how each method handles code execution flow and error management to write cleaner and more efficient asynchronous code.

We'll cover the following...

As a refresher on the techniques that we have explored, let’s compare the techniques used when using callbacks, Promises, and async await all in one go.

Callback

First up, the callback syntax is as follows:

C++
{
    "compilerOptions": {
        "target": "ES2015",
        "module": "commonjs",
        "strict": false,
        "esModuleInterop": true,
        "skipLibCheck": true,
        "forceConsistentCasingInFileNames": true
    }
}

Here, we define a function named usingCallbacks. Within this function, we define two more functions named afterCallbackSuccess and ...