Modern JavaScript from the Beginning - Second Edition - AJAX and XHR Object

The video tutorial introduces the XML HTTP Request (XHR) object and its role in making HTTP requests. It explains the historical context of XML in Ajax and contrasts it with the modern use of JSON. The tutorial provides a step-by-step guide on implementing XHR in JavaScript, including initializing requests, handling responses, and displaying data on a webpage. It also covers fetching data from APIs, using the GitHub API as an example, and emphasizes the importance of understanding API documentation.

How can you fetch data from a local JSON file using XHR?

What is the significance of the status code 200 in an XHR response?

What is the purpose of the JSON.parse method in the context of XHR?

Explain how to handle errors when making an XHR request.