ChatGPT: Your Personal Mentor

ChatGPT: Your Personal Mentor

I am sure that you would have read thousands of articles and watched hundreds of youtube videos about ChatGPT. But this will be different.

ChatGPT

ChatGPT is an advanced language model developed by OpenAI. It can understand natural language and will assist you by providing answers to questions, providing explanations, offering suggestions etc.....

ChatGPT as a Mentor

Now you know the power of ChatGPT now let us look at how you could use ChatGPT as your mentor.

  • Let us say you doubt a concept 'promise on JavaScript'.

Generally, you will go to ChatGPT and search

'Promise on JavaScript'.

ChatGPT will give a response like this:

"In JavaScript, a promise is an object that represents the eventual completion (or failure) of an asynchronous operation and its resulting value. Promises are used to handle asynchronous operations, such as making network requests, reading files, or querying databases, in a more organized and manageable way.

The syntax for creating a promise in JavaScript is as follows:

const myPromise = new Promise((resolve, reject) => {
  // Asynchronous operation
  // If the operation is successful, call resolve(result)
  // If the operation fails, call reject(error)
});

The new Promise() constructor takes a function as its argument, commonly referred to as the "executor" function. This function receives two parameters: resolve and reject. The resolve function is used to fulfill the promise with a successful result, while the reject function is used to reject the promise with an error.

Here's an example of a simple promise that resolves after a certain timeout:

const delay = (milliseconds) => {
  return new Promise((resolve) => {
    setTimeout(() => {
      resolve('Delay resolved!');
    }, milliseconds);
  });
};

delay(2000)
  .then((result) => {
    console.log(result);
  })
  .catch((error) => {
    console.error(error);
  });

In this example, the delay function returns a promise that resolves after the specified number of milliseconds. The then method is used to handle the resolved promise and retrieve the result, while the catch method is used to handle any potential errors that occur during the promise's execution.

Promises also provide a way to chain multiple asynchronous operations together using the then method, allowing for more complex workflows and error handling.

It's worth noting that in modern JavaScript, async/await is often used as a more convenient way to work with promises. The async keyword allows you to define an asynchronous function, and the await keyword is used to pause the execution of the function until a promise is resolved or rejected."

  • Instead of that try searching like this

Give me an example of promise in JavaScript and give me some tasks for me to practise

Response will be like this:

"Certainly! Here's an example of a promise in JavaScript that simulates fetching data from an API:

const fetchData = () => {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      const data = {
        id: 1,
        name: 'John Doe',
        email: 'johndoe@example.com'
      };
      resolve(data); // Simulating successful API response
      // reject('Error: Failed to fetch data'); // Simulating API error
    }, 2000);
  });
};

fetchData()
  .then((data) => {
    console.log('Data:', data);
  })
  .catch((error) => {
    console.error('Error:', error);
  });

In this example, the fetchData function returns a promise that resolves after a timeout of 2000 milliseconds, simulating an API call. Inside the promise, you can customize the logic according to your needs, such as making an actual network request.

To practice working with promises, here are a few tasks you can try:

  1. Create a promise that resolves after a given delay and logs a success message.

  2. Create a promise that rejects after a given delay and logs an error message.

  3. Create a chain of promises where each promise waits for the previous one to resolve before starting its execution.

  4. Write a function that accepts an array of URLs and fetches data from each URL using promises. Resolve the final promise with an array of results.

  5. Implement error handling in a promise chain, where any error in any of the promises will cause the chain to stop and log an error message.

These tasks will help you get familiar with creating and working with promises, handling asynchronous operations, and understanding promises chaining and error handling."

Conclusion

Just like that always ask for tasks along with a doubt so that you could practise the concept. If you find any difficulties in doing that task just ask for the solution along with the task number.

Thats it. I know that this is not much but hopefully, it will add some value to your learning journey. Best wishes.