Baseline Widely available
Note: This feature is available in Web Workers.
The ProgressEvent.total
read-only property is a number indicating the total size of the data being transmitted or processed.
For ProgressEvent
s dispatched by the browser, the value refers to the size, in bytes, of a resource and is derived from the Content-Length
response header.
In a ProgressEvent
you create yourself, this may also be the total bytes of a resource, although this can be any number. For example, you may wish to normalize total
to a value such as 100
or 1
if revealing the precise amount of bytes of a resource is a concern. If using 1
as a total, then ProgressEvent.loaded
would be a decimal value between 0
and 1
.
If the event's lengthComputable
property is false
, this value is meaningless and should be ignored.
A number.
Specifications Browser compatibility See alsoProgressEvent
interface it belongs to.RetroSearch is an open source project built by @garambo | Open a GitHub Issue
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