ProgressEvent.lengthComputable

The ProgressEvent.lengthComputable read-only property is a Boolean flag indicating if the resource concerned by the ProgressEvent has a length that can be calculated. If not, the ProgressEvent.total property has no significant value.

Syntax

flag = ProgressEvent.lengthComputable

Specifications

Specification Status Comment
XMLHttpRequest
The definition of 'ProgressEvent.lengthComputable' in that specification.
Living Standard  

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support50 Yes3.5 Yes373.1
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support5050 Yes4372 ?

See also

Document Tags and Contributors

Last updated by: ddbeck,