What enhances readability in asynchronous JavaScript programming?

Implementing the 'async' and 'await' keywords significantly enhances readability in asynchronous JavaScript programming. The 'async' keyword allows you to define a function as asynchronous, meaning it will implicitly return a promise. The 'await' keyword, when used inside an async function, pauses the execution of the function, waiting for a promise to resolve. This results in a more synchronous flow of code, making it easier to follow the logic and see the order of operations without getting lost in callback hell or complex promise chains.

By using 'async' and 'await,' developers can write code that looks more like traditional synchronous code while still handling asynchronous operations. This reduces the cognitive load for the programmer, making the codebase less prone to errors and easier to maintain. Consequently, this approach contrasts with methods like nested callbacks or traditional promise chains, which can create nested structures and make it hard to trace the flow of execution.