The goals 💪🏻What & Why? ✌🏻Sending JS-driven Http Requests 👍🏻Handling Responses & Errors What is "Ajax"? Asynchronous JavaScript And XML XMLHttpRequest What is XML? Extensible Markup Language (XML) XML is a data format for formatting / structuring text data in a machine-readable way Looks like HTML - because HTML is based on XML HTML is standardized, XML is not Nowadays, XML isn't really used any..