async await practical example | practical examples [Hindi/Urdu]
async await practical examples
Practical Example
Async Await Example
How to use using self-executing function - Immediately invoked function expression
Async Await Chaining
Async Await – Resolve vs Reject
Exception Handling with Async Await
Parallel Execution – Await is not blocking the flow
What is async await?
Sequential Execution
Using await in an async function allows you to write asynchronous code in a more sequential manner. This can make complex asynchronous logic easier to follow.
Async Function Returns a Promise
An async function always returns a promise. The value that the async function resolves to is the value returned by the function. If the function throws an error, the promise is rejected.
Is await Blocks the main flow?
Ans: No
Parallel Execution
While await makes operations appear sequential, you can still perform asynchronous tasks in parallel within an async function by starting multiple promises and awaiting their results.
Is chaining possible with async await?
Ans: Yes
Chaining
await can be chained. Allowing you to wait for multiple asynchronous operations to complete sequentially within an async function.
Compatibility
async/await is supported in modern versions of JavaScript (ES2017 and later). It is widely supported in Node.js and browsers. It might not work in older environments without proper transpilation.
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