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
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