ProgressEvent.loaded read-only property is an integer representing the amount of work already performed by the underlying process. The ratio of work done can be calculated with the property and
ProgressEvent.total. When downloading a resource using HTTP, this only represent the part of the content itself, not headers and other overhead.
value = ProgressEvent.loaded
The definition of 'ProgressEvent.loaded' in that specification.
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|Feature||Chrome||Edge||Firefox (Gecko)||Internet Explorer||Opera||Safari|
|Basic support||No support||(Yes)||3.5 (1.9.1)||No support||No support||No support|
|Feature||Android||Edge||Firefox Mobile (Gecko)||IE Mobile||Opera Mobile||Safari Mobile|
|Basic support||No support||(Yes)||1.0 (1.9.1)||No support||No support||No support|
ProgressEventinterface it belongs to.