Case 2
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Timeout with no targetable DOM feedback
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| </head> | |
| <body> | |
| <pre id="result"></pre> | |
| <button id="myBtn">Go!</button> | |
| <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> | |
| <script src="script.js"></script> | |
| </body> | |
| </html> |
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| /* global $ */ | |
| var isProcessingStarted = false, | |
| isProcessingDone = false, | |
| $myBtn = $('#myBtn'); | |
| $myBtn.on('click', clickHandler); | |
| function clickHandler() { | |
| if (!isProcessingStarted) { | |
| startProcessing(); | |
| } else { | |
| checkIfReady(); | |
| } | |
| } | |
| function startProcessing() { | |
| isProcessingStarted = true; | |
| $myBtn.text('Processing...'); | |
| // Processing takes about two seconds before it's ready | |
| // (could be an AJAX request) | |
| setTimeout(processingDone, 2000); | |
| } | |
| function processingDone() { | |
| isProcessingDone = true; | |
| $myBtn.text('Done'); | |
| } | |
| function checkIfReady() { | |
| if (isProcessingDone) { | |
| $('#result').append('Horray!!\n'); | |
| } else { | |
| $('#result').append('Fail :(\n'); | |
| } | |
| } |
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