A List of XHR Properties and Corresponding Definitions

Properties	Definitions
onreadystatechange	An event handler that fires when the state of the request object changes.
readyState	Returns number values that indicate the current state of the object. These values are listed in Table 2.3.
responseText	String version of the response from the server.
responseXML	DOM-compatible document object of the response from the server.
status	Status code of the response from the server.
statusText	A status message returned as a string.