Asynchronous JavaScript – How to Use Promises in Your JS Code

JavaScript allows for asynchronous operations to be executed without blocking the main thread using promises as a cleaner approach. Promises help avoid callback hell and offer a more organized way of handling asynchronous code. They can be created by using the `Promise` constructor and consumed using methods like `.then()` and `.catch()`. Promises can also be chained together and errors can be handled using the `.catch()` method. Async/await is another approach for handling asynchronous code, making it look more synchronous and readable. Web Workers provide an alternative way to achieve parallelism in JavaScript.