Created
September 28, 2012 15:32
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Promised-based poll for element's availability in the DOM
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| // Poll until an element is "available" in the DOM, returning a promise that resolves when the element is in the DOM and scriptable. | |
| $.available = function (id) { | |
| var _poll = function(id, dfd) { | |
| if(document.getElementById(id)) { | |
| dfd.resolve(document.getElementById(id)); | |
| } | |
| else { | |
| setTimeout(function() { | |
| _poll(id, dfd); | |
| }, 100); | |
| } | |
| }; | |
| return $.Deferred(function(dfd) { | |
| _poll(id, dfd); | |
| }).promise(); | |
| } | |
| // Usage: $.available('foo').done(function(){ // do something that depends on div#foo being available }) |
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