Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
returnValue indicates whether the default action for
this event has been prevented or not.
It is set to
default, allowing the default action to occur. Setting this property to
false prevents the default action.
A boolean value which is
true if the event has not been
canceled; otherwise, if the event has been canceled or the default has been prevented,
the value is
The value of
returnValue is the opposite of the value returned by
|DOM Standard (DOM)|
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