Why RxJS Makes Asynchronous JavaScript Easier

Handling asynchronous code in JavaScript can become messy quickly. Nested callbacks, chained promises, and complex async workflows often make code difficult to maintain. Whether you're dealing with API calls, user events, or real-time data streams, managing asynchronous data efficiently is critical. In plain JavaScript, asynchronous logic is typically handled using: callbacks promises async/await While these approaches work well for many situations, they have limitations, especially when working with multiple values over time. This is where RxJS and observables provide a powerful alternative. Using Callbacks Callbacks were one of the earliest ways to handle asynchronous operations in JavaScript. A typical example might look like this: apiCall(function (response) { processResponse(response, function (processedData) { writeFile(processedData, function () { console.log('File written successfully'); }); }); }); In this example, we first make an API call, process the returned data with a ca