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Simple Long Polling Example with JavaScript and jQuery by Tian Davis (@tiandavis) from Techoctave.com (http://techoctave.com/c7/posts/60-simple-long-polling-example-with-javascript-and-jquery)
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| // Long Polling | |
| (function poll(){ | |
| $.ajax({ url: "server", success: function(data){ | |
| //Update your dashboard gauge | |
| salesGauge.setValue(data.value); | |
| }, dataType: "json", complete: poll, timeout: 30000 }); | |
| })(); |
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| // The setTimeout Technique | |
| (function poll(){ | |
| setTimeout(function(){ | |
| $.ajax({ url: "server", success: function(data){ | |
| //Update your dashboard gauge | |
| salesGauge.setValue(data.value); | |
| //Setup the next poll recursively | |
| poll(); | |
| }, dataType: "json"}); | |
| }, 30000); | |
| })(); |
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| // The setInterval Technique | |
| setInterval(function(){ | |
| $.ajax({ url: "server", success: function(data){ | |
| //Update your dashboard gauge | |
| salesGauge.setValue(data.value); | |
| }, dataType: "json"}); | |
| }, 30000); |
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