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The ProgressEvent.loaded read-only property is an unsigned long long 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.

Syntax

value = ProgressEvent.loaded

Specifications

Specification Status Comment
Progress Events
The definition of 'ProgressEvent.loaded' in that specification.
Recommendation Initial definition.

Browser compatibility

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

See also

Document Tags and Contributors

 Contributors to this page: abbycar, fscholz, Reachmeatshivam, teoli
 Last updated by: abbycar,