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    ProgressEvent()

    The ProgressEvent() constructor returns a newly created ProgressEvent, representing the current completion of a long process.

    Syntax

    progressEvent = new ProgressEvent(type, {lengthComputable: aBooleanValue, loaded: aNumber, total: aNumber});
    

    Arguments

    The ProgressEvent() constructor also inherits arguments from Event().

    type
    Is a DOMString representing the name of the type of the ProgressEvent. It is case-sensitive.
    lengthComputable Optional
    Is a Boolean flag indicating if the total work to be done, and the amount of work already done, by the underlying process is calculable. In other words, it tells if the progress is measurable or not. It defaults to false.
    loaded Optional
    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. It defaults to 0.
    total Optional
    Is an unsigned long long representing the total amount of work that the underlying process is in the progress of performing. When downloading a resource using HTTP, this only represent the content itself, not headers and other overhead. It defaults to 0.

    Specifications

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

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support Not supported 22.0 (22.0) Not supported Not supported Not supported
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support Not supported 22.0 (22.0) Not supported Not supported Not supported

    See also

     

    Document Tags and Contributors

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