Created
June 16, 2016 08:31
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Facebook like notification reader with ajax
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| <html xmlns="http://www.w3.org/1999/xhtml"> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> | |
| <script type="text/javascript" src="http://code.jquery.com/jquery-1.7.2.min.js"></script> | |
| <script> | |
| var num =1; | |
| $(document).ready(function() { | |
| setInterval(longPoll,8000); | |
| }); | |
| function longPoll() { | |
| var shouldDelay = false; | |
| $.ajax({ | |
| url: 'http://localhost', | |
| async: true, // by default, it's async, but... | |
| dataType: 'html', // or the dataType you are working with | |
| timeout: 10000, // IMPORTANT! this is a 10 seconds timeout | |
| cache: false | |
| }).done(function (data, textStatus, jqXHR) { | |
| // do something with data... | |
| //$.sticky(num++); | |
| $('#notification').html(num++); | |
| }).fail(function (jqXHR, textStatus, errorThrown ) { | |
| shouldDelay = textStatus !== "timeout"; | |
| }).always(function() { | |
| // in case of network error. throttle otherwise we DOS ourselves. If it was a timeout, its normal operation. go again. | |
| var delay = shouldDelay ? 100000: 0; | |
| window.setTimeout(longPoll, delay); | |
| }); | |
| } | |
| </script> | |
| </head> | |
| <body> | |
| <span id="notification">0</span> | |
| </body> | |
| </html> |
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