Can you explain the difference between callbacks and async/await in JavaScript?
Sure! Callbacks are functions passed as arguments to other functions, executed after a task is completed. Async/await is a syntax that allows you to write asynchronous code that looks synchronous, making it easier to read and maintain.
Why would I choose async/await over callbacks?
Async/await helps avoid callback hell, making your code cleaner and easier to understand. It also allows for better error handling using try/catch.
Can you give me an example of both?
Of course! A callback example would be using setTimeout
to delay execution. An async/await example would involve fetching data from an API and waiting for the response before proceeding.
What are some common pitfalls with async/await?
Common pitfalls include forgetting to use await
, which can lead to unexpected behavior, and not handling errors properly, which can cause unhandled promise rejections.
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