The InstallEvent() constructor creates a new InstallEvent object.
new InstallEvent(type, options)typeA string with the name of the event. It is case-sensitive and browsers always set it to install.
options OptionalAn object that, in addition of the properties defined in Event(), can contain any custom settings that you want to apply to the event object. Currently no possible options are mandatory, but this has been defined for forward compatibility.
A new InstallEvent object.