param.reactive.reactive_ops.not_

reactive_ops.not_() → rx

Perform a logical NOT operation on the current reactive value.

This method computes the logical negation (not) of the current reactive expression and returns the result as a new reactive expression.

Returns:

A new reactive expression representing the result of the NOT operation.

Return type:

rx

Examples

Apply a logical NOT operation to a reactive boolean:

>>> import param
>>> rx_bool = param.rx(True)
>>> rx_not = rx_bool.rx.not_()
>>> rx_not.rx.value
False

Update the reactive value and observe the change:

>>> rx_bool.rx.value = False
>>> rx_not.rx.value
True