Event: returnValue property

Available in workers

The Event property returnValue indicates whether the default action for this event has been prevented or not.

It is set to true by default, allowing the default action to occur. Setting this property to false prevents the default action.

[!NOTE] While returnValue has been adopted into the DOM standard, it is present primarily to support existing code. Use preventDefault(), and defaultPrevented instead of this historical property.

Value

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 false.

The value of returnValue is the opposite of the value returned by defaultPrevented.

Specifications

Browser compatibility

See also

• returnValue: the return value for the <dialog>.