What are the differences between callbacks, promises, and async/await?

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Accepted Answer

Callbacks are functions passed as arguments, promises represent eventual completion of an asynchronous operation, async await is syntactic sugar for promises.

Callbacks are functions passed as arguments to be executed after a certain task is completed.
Promises represent the eventual completion of an asynchronous operation and allow chaining of multiple asynchronous operations.
Async await is syntactic sugar for promises, making asynchronous code look synchronous and easier to read.
Callbacks can lead to callback hell, while promises and async await help avoid this nesting issue.
Example: Callback - setTimeout(() => { console.log('Callback executed') }, 1000)
Example: Promise - fetch('https://api.example.com/data').then(response => response.json()).then(data => console.log(data))
Example: Async Await - async function fetchData() { const response = await fetch('https://api.example.com/data'); const data = await response.json(); console.log(data); }

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What are the differences between callbacks, promises, and async/await?

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