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Ajax Progess Loader with Deferreds
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title></title> | |
| <script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script> | |
| </head> | |
| <body> | |
| Loading <output id="output">0%</output> | |
| <br> | |
| Loading <progress id="progress" value="0">0%</progress> | |
| <script> | |
| (function() { | |
| function getSource() { | |
| var deferred = $.Deferred(); | |
| $.ajax({ | |
| url: 'http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20geo.countries%20where%20place%3D%22North%20America%22&format=json&diagnostics=true&callback=', | |
| success: deferred.resolve, | |
| error: deferred.reject, | |
| xhrFields: { | |
| onprogress: function (e) { | |
| if (e.lengthComputable) { | |
| deferred.notify(parseInt(e.loaded / e.total * 100), 10); | |
| } | |
| } | |
| } | |
| }); | |
| return deferred.promise(); | |
| } | |
| $.when( | |
| getSource() | |
| ).then( | |
| function(json) { | |
| console.log('success ' + json); | |
| }, | |
| function() { | |
| console.log('error'); | |
| }, | |
| function(value) { | |
| $('#output').text(value + "%"); | |
| $('#progress').attr('value', value); | |
| } | |
| ) | |
| })(); | |
| </script> | |
| </body> | |
| </html> |
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