XmlHttpRequest

Objectives

• Review Asynchronous JavaScript and XML (AJAX).

• Learn to use the XMLHttpRequest object to implement AJAX.

• Use JSON to parse response text to JSON.

• Set and access XMLHttpRequest properties.

Topics

• Asynchronous JavaScript and XML (AJAX)
• XMLHttpRequest Object
• Create and Open the Request
• Using send(): To Dispatch a XMLHttpRequest
• Labs
• Using onreadystatechange
• Checking the Response Status with the status Property
• Capture Returned Data with XMLHttpRequest.responseText
• Sending POST and Other Request Methods
• Labs

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