Make an HTTP request in JavaScript

You can make an HTTP request in JavaScript using the built-in XMLHttpRequest object or the newer fetch API.

Here is an example of making an HTTP GET request using XMLHttpRequest:

Javascript
const xhr = new XMLHttpRequest();
xhr.open('GET', 'https://example.com/api/data');
xhr.onload = function() {
  if (xhr.status === 200) {
    console.log(xhr.responseText);
  } else {
    console.error('Error:', xhr.status);
  }
};
xhr.send();

And here is an example of making the same request using fetch:

Javascript
fetch('https://example.com/api/data')
  .then(response => {
    if (response.ok) {
      return response.text();
    }
    throw new Error('Network response was not ok.');
  })
  .then(data => console.log(data))
  .catch(error => console.error('Error:', error));

Both of these examples make an HTTP GET request to https://example.com/api/data. The XMLHttpRequest example uses a callback function to handle the response, while the fetch example uses promises. You can use either method depending on your preference and the needs of your project.