javascript - Find elements which have jquery widgets initialized upon them -

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i using jquery-file-upload widget (although believe question can generalize jquery widget). api instructs user initialize the widget using fileupload method, thus:

$('#fileupload').fileupload();

my question is: without knowing ids, how can find #fileupload (and other elements have had .fileupload() called upon them?

jquery file upload uses jquery ui widget factory under hood, , factory known register widgets instances elements extend using data().

therefore, can use filter() , write like:

// restrict ancestor if can, $("*") expensive. var uploadified = $("#yourancestor *").filter(function() {     return $(this).data("fileupload"); });

update: jquery ui 1.9 onwards, the data() key becomes widget's qualified name, dots replaced dashes. therefore, code above becomes:

var uploadified = $("#yourancestor *").filter(function() {     return $(this).data("blueimp-fileupload"); });

using unqualified name still supported in 1.9 deprecated, , support dropped in 1.10.


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