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    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 property has no significant value.


    flag = ProgressEvent.lengthComputable


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

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support Not supported 3.5 (1.9.1) Not supported Not supported Not supported
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support Not supported 1.0 (1.9.1) Not supported Not supported Not supported

    See also

    Document Tags and Contributors

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