a-sync-waterfall is a lightweight npm package providing asynchronous waterfall execution. It allows you to run an array of asynchronous functions in sequence, passing the result of each function as an argument to the next. This is helpful for managing complex asynchronous flows where each step depends on the completion of the previous one. The package utilizes Promises for reliable control and error handling, ensuring proper execution order and simplifying asynchronous task management within Node.js or browser environments.