42 CHAPTER 2 THE NUTS AND BOLTS (Hosting web)

42 CHAPTER 2 THE NUTS AND BOLTS OF AJAX In Figure 2-8 the debugger shows that this references an instance of Asynchronous. In the example HTML code, the methods AsyncUpdateEvent and AsyncUpdateEvent2 do not use the this variable, but they could. Now you re ready to put it all together and execute the HTML code. Click the Get a Document button and then click the Get a Document2 button. The HTML page in Figure 2-9 is generated. Figure 2-9. HTML page state after immediate feedback of the second row In Figure 2-9 the second row contains data, whereas the first row does not. This is because the second row references a static document that is downloaded and processed immediately. The first row is not yet filled out because there is a 10-second delay. After 10 seconds, the HTML page appears similar to Figure 2-10. Figure 2-10. HTML page state after all requests are finished
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