JavaScript Asynchronous: Exercises, Practice, Solutions

Last update on December 07 2024 12:50:32 (UTC/GMT +8 hours)

JavaScript Asynchronous Programming [ 9 exercises with solution ]

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1. Delayed Callback Execution

Write a JavaScript function that takes a callback and invokes it after a delay of 2 second.

2. Callback to Promise Conversion

Write a JavaScript program that converts a callback-based function to a Promise-based function.

3. HTTP GET with Promises

Write a JavaScript a function that makes an HTTP GET request and returns a Promise that resolves with the response data.

4. Parallel URL Downloads with Promises

Write a JavaScript function that takes an array of URLs and downloads the contents of each URL in parallel using Promises.

5. Sequential Async Operations

Write a JavaScript program that implements a function that performs a series of asynchronous operations in sequence using Promises and 'async/await'.

6. Concurrent API Fetch with Promise.all

Write a JavaScript function that fetches data from multiple APIs concurrently and returns a combined result using Promises and 'Promise.all()'.

7. API Fetch with Retry Mechanism

Write a JavaScript function that fetches data from an API and retries the request a specified number of times if it fails.

8. Repeated Execution with setInterval

Write a JavaScript program to implement a function that executes a given function repeatedly at a fixed interval using 'setInterval()'.

9. API Fetch with Timeout Cancellation

Write a JavaScript function that fetches data from an API and cancels the request if it takes longer than a specified time.

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