JS API

setTimeout()

Executes a function after a specified delay.

• Example:

    setTimeout(() => {
      console.log('Executed after 1 second');
    }, 1000);

fetch()

Used for making network requests. It returns a Promise that resolves to the response.

• Example:

    fetch('https://api.example.com/data')
      .then(response => response.json())
      .then(data => console.log(data));

Promise()

Represents the eventual completion (or failure) of an asynchronous operation and its resulting value.

• Example:

    const promise = new Promise((resolve, reject) => {
      const success = true;
      if (success) {
        resolve('Operation successful');
      } else {
        reject('Operation failed');
      }
    });

    promise.then(result => console.log(result))
           .catch(error => console.log(error));