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    TCPSocket.onopen

    Non-standard
    This feature is not on a current W3C standards track, but it is supported on the Firefox OS platform. Although implementations may change in the future and it is not supported widely across browsers, it is suitable for use in code dedicated to Firefox OS apps.

    This API is available on Firefox OS for privileged or certified applications only.

    Summary

    The onopen property is used to specify an event handler to receive open events. Those events are triggered each time the connection to the server has been established.

    Syntax

    instanceOfTCPSocket.onopen = funcRef

    Where funcRef is a function to be called when the open event occurs.

    This callback function will get a TCPSocketEvent object as its first parameter.

    TCPSocketEvent

    Such events are simple JavaScript objects with the following properties:

    target
    The TCPSocket object which fired the event.
    type
    A string defining the type of the event. Its value can be one of the following: open, error, data, drain, or close.
    data
    The data related to the event, if any.

    Specification

    Not part of any specification yet; however, this API is discussed at W3C as part of the System Applications Working Group under the Raw Sockets proposal.

    See also

    Document Tags and Contributors

    Contributors to this page: kscarfone, teoli, jsx, Jeremie
    Last updated by: teoli,