ajaxRequest

// Create a new XMLHttpRequest Object
const xhr = new XMLHttpRequest();
// Initialize the object by calling open method
xhr.open('GET', 'https://images-api.nasa.gov/search?q=galaxy');

// Track the state changes of the request.
xhr.onreadystatechange = function () {
  const DONE = 4; // readyState 4 means the request is done.
  const OK = 200; // status 200 is a successful return.
  if (xhr.readyState === DONE) {
    if (xhr.status === OK) {
      console.log(xhr.responseText); // 'This is the output.'
    } else {
      console.log('Error: ' + xhr.status); // An error occurred during the request.
    }
  }
};

// Send the request to initialized endpoint
xhr.send();